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224 results on '"Nano-Optique et Forces (NOF)"'

1. Inducing micromechanical motion by optical excitation of a single quantum dot

Author

Alexia Auffèves, Pierre Verlot, Pierre-Louis de Assis, Benjamin Besga, Benjamin Pigeau, Jean-Michel Gérard, Jan Kettler, Laure Mercier de Lépinay, Jean-Philippe Poizat, Nitika Vaish, Maxime Richard, Julien Claudon, Olivier Arcizet, Olivier Bourgeois, Nanophysique et Semiconducteurs (NEEL - NPSC), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Nano-Optique et Forces (NEEL - NOF), Laboratoire de Physique de l'ENS Lyon (Phys-ENS), École normale supérieure de Lyon (ENS de Lyon)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Universidade Estadual de Campinas = University of Campinas (UNICAMP), Thermodynamique et biophysique des petits systèmes (NEEL - TPS), Nanophysique et Semiconducteurs (NPSC), PHotonique, ELectronique et Ingénierie QuantiqueS (PHELIQS), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA), University of Nottingham, UK (UON), ANR-16-CE09-0010,QDOT,Transducteurs optomécaniques à base de boites quantiques(2016), ANR-16-CE30-0021,QFL,Fluides Quantiques de Lumière(2016), Nano-Optique et Forces (NOF), École normale supérieure - Lyon (ENS Lyon)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, University of Campinas [Campinas] (UNICAMP), Thermodynamique et biophysique des petits systèmes (TPS), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Université Grenoble Alpes (UGA)

Subjects
Orders of magnitude (temperature), Exciton, Biomedical Engineering, FOS: Physical sciences, Bioengineering, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, law.invention, [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph], law, Quantum state, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), General Materials Science, Electrical and Electronic Engineering, Quantum, ComputingMilieux_MISCELLANEOUS, [PHYS]Physics [physics], Physics, Quantum Physics, Condensed Matter - Mesoscale and Nanoscale Physics, business.industry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Laser, Atomic and Molecular Physics, and Optics, 0104 chemical sciences, Radiation pressure, Quantum dot, [PHYS.COND.CM-GEN]Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other], Optoelectronics, Quantum Physics (quant-ph), 0210 nano-technology, business, Excitation
Abstract

Hybrid quantum optomechanical systems offer an interface between a single two-level system and a macroscopical mechanical degree of freedom. In this work, we build a hybrid system made of a vibrating microwire coupled to a single semiconductor quantum dot (QD) via material strain. It was shown a few years ago, that the QD excitonic transition energy can thus be modulated by the microwire motion. We demonstrate here the reverse effect, whereby the wire is set in motion by the resonant drive of a single QD exciton with a laser modulated at the mechanical frequency. The resulting driving force is found to be almost 3 orders of magnitude larger than radiation pressure. From a fundamental aspect, this state dependent force offers a convenient strategy to map the QD quantum state onto a mechanical degree of freedom., Comment: 16 pages, 12 figures

Published
2020

2. Conflict-free collective stochastic decision making by orbital angular momentum of photons through quantum interference

Author

Ryoichi Horisaki, Guillaume Bachelier, Nicolas Chauvet, Serge Huant, Takashi Amakasu, Makoto Naruse, Graduate School of Engineering [The Univ of Tokyo] (UTokyo), The University of Tokyo (UTokyo), Nano-Optique et Forces (NOF), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)

Subjects
FOS: Computer and information sciences, Computer Science - Machine Learning, Mathematical optimization, Angular momentum, Photon, Mathematics and computing, Computer science, Science, Phase (waves), Computer Science - Emerging Technologies, FOS: Physical sciences, Duality (optimization), Information technology, 01 natural sciences, Article, Machine Learning (cs.LG), 010309 optics, symbols.namesake, Strategy, 0103 physical sciences, Single photons and quantum effects, 010306 general physics, Quantum Physics, Multidisciplinary, Orthogonal polarization spectral imaging, Emerging Technologies (cs.ET), Nash equilibrium, [PHYS.COND.CM-GEN]Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other], Scalability, symbols, Medicine, Quantum Physics (quant-ph), Physics - Optics, Optics (physics.optics)
Abstract

In recent cross-disciplinary studies involving both optics and computing, single-photon-based decision-making has been demonstrated by utilizing the wave-particle duality of light to solve multi-armed bandit problems. Furthermore, entangled-photon-based decision-making has managed to solve a competitive multi-armed bandit problem in such a way that conflicts of decisions among players are avoided while ensuring equality. However, as these studies are based on the polarization of light, the number of available choices is limited to two, corresponding to two orthogonal polarization states. Here we propose a scalable principle to solve competitive decision-making situations by using the orbital angular momentum of photons based on its high dimensionality, which theoretically allows an unlimited number of arms. Moreover, by extending the Hong-Ou-Mandel effect to more than two states, we theoretically establish an experimental configuration able to generate multi-photon states with orbital angular momentum and conditions that provide conflict-free selections at every turn. We numerically examine total rewards regarding three-armed bandit problems, for which the proposed strategy accomplishes almost the theoretical maximum, which is greater than a conventional mixed strategy intending to realize Nash equilibrium. This is thanks to the quantum interference effect that achieves no-conflict selections, even in the exploring phase to find the best arms.

Published
2021

3. Justifying Born’s Rule Pα = |Ψα|2 Using Deterministic Chaos, Decoherence, and the de Broglie–Bohm Quantum Theory

Author

Aurélien Drezet, Nano-Optique et Forces (NOF), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)

Subjects
Quantum decoherence, Science, QC1-999, General Physics and Astronomy, Quantum entanglement, Astrophysics, Computer Science::Digital Libraries, 01 natural sciences, 010305 fluids & plasmas, Quantum probability, Quantum mechanics, 0103 physical sciences, 010306 general physics, ComputingMilieux_MISCELLANEOUS, [PHYS]Physics [physics], Physics, quantum probability, deterministic chaos, Toy model, H-theorem, Quantum Physics, 16. Peace & justice, QB460-466, pilot-wave mechanics, Qubit, Kinetic theory of gases, Computer Science::Programming Languages, Matter wave, entanglement
Abstract

In this work, we derive Born’s rule from the pilot-wave theory of de Broglie and Bohm. Based on a toy model involving a particle coupled to an environment made of “qubits” (i.e., Bohmian pointers), we show that entanglement together with deterministic chaos leads to a fast relaxation from any statistical distribution ρ(x) of finding a particle at point x to the Born probability law |Ψ(x)|2. Our model is discussed in the context of Boltzmann’s kinetic theory, and we demonstrate a kind of H theorem for the relaxation to the quantum equilibrium regime.

Published
2021
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4. Ultrasensitive nano-optomechanical force sensor operated at dilution temperatures

Author

Benjamin Pigeau, Benjamin Besga, Antoine Reigue, Wolfgang Wernsdorfer, Eric Eyraud, Laure Mercier de Lépinay, O. Arcizet, Philip Heringlake, Clement Gouriou, Francesco Fogliano, Nano-Optique et Forces (NOF), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Ingénierie Expérimentale (ExpE), and Circuits électroniques quantiques Alpes (QuantECA)

Subjects
Photon, Materials science, Physics::Instrumentation and Detectors, Science, Nanowire, Physics::Optics, General Physics and Astronomy, 02 engineering and technology, 01 natural sciences, Article, General Biochemistry, Genetics and Molecular Biology, Condensed Matter::Materials Science, chemistry.chemical_compound, Nanosensor, 0103 physical sciences, Silicon carbide, nano-optomechanics, Dilution refrigerator, [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat], 010306 general physics, Nanophotonics and plasmonics, Multidisciplinary, business.industry, Oscillation, Astrophysics::Instrumentation and Methods for Astrophysics, General Chemistry, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, 021001 nanoscience & nanotechnology, Thermal conduction, Photon counting, Nanosensors, chemistry, Optoelectronics, dilution refrigerator, force sensors, 0210 nano-technology, business
Abstract

Cooling down nanomechanical force probes is a generic strategy to enhance their sensitivities through the concomitant reduction of their thermal noise and mechanical damping rates. However, heat conduction becomes less efficient at low temperatures, which renders difficult to ensure and verify their proper thermalization. Here we implement optomechanical readout techniques operating in the photon counting regime to probe the dynamics of suspended silicon carbide nanowires in a dilution refrigerator. Readout of their vibrations is realized with sub-picowatt optical powers, in a situation where less than one photon is collected per oscillation period. We demonstrate their thermalization down to 32 ± 2 mK, reaching very large sensitivities for scanning probe force sensors, 40 zN Hz−1/2, with a sensitivity to lateral force field gradients in the fN m−1 range. This opens the road toward explorations of the mechanical and thermal conduction properties of nanoresonators at minimal excitation level, and to nanomechanical vectorial imaging of faint forces at dilution temperatures., Optical readout techniques for nanomechanical force probes usually generate more heat than what can be dissipated through the nanoresonators. Here, the authors use an interferometric readout scheme, achieving large force sensitivity using suspended silicon carbide nanowires at dilution temperatures.

Published
2021

5. Colloidal Rare Earth Vanadate Single Crystalline Particles as Ratiometric Luminescent Thermometers

Author

Godefroy Leménager, Juliette Alain, Eric Larquet, Paulo C. de Sousa Filho, Jochen Fick, Thierry Gacoin, Osvaldo Antonio Serra, Laboratoire de physique de la matière condensée (LPMC), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X), Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS), Nano-Optique et Forces (NOF ), Institut Néel (NEEL), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])

Subjects
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Materials science, Inorganic chemistry, Rare earth, chemistry.chemical_element, 02 engineering and technology, Yttrium, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Photon upconversion, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, TEMPERATURA, Colloid, General Energy, Thulium, chemistry, Vanadate, Physical and Theoretical Chemistry, 0210 nano-technology, Luminescence, ComputingMilieux_MISCELLANEOUS
Abstract

Thulium/ytterbium-doped yttrium vanadate particles provide a ratiometric thermal response as both colloids and powders via downshift or upconversion emissions. Here, we synthesized yttrium vanadate...

Published
2019

6. Mapping the Cavity Optomechanical Interaction with Subwavelength-Sized Ultrasensitive Nanomechanical Force Sensors

Author

Jakob Reichel, Benjamin Pigeau, Antoine Reigue, Laure Mercier de Lépinay, Francesco Fogliano, Cyril Vaneph, O. Arcizet, Philip Heringlake, Benjamin Besga, Nano-Optique et Forces (NOF), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Kastler Brossel (LKB [Collège de France]), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Collège de France (CdF (institution)), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)

Subjects
[PHYS]Physics [physics], Physics, Mode volume, Photon, Field (physics), business.industry, QC1-999, Optical force, Nanowire, Physics::Optics, General Physics and Astronomy, 01 natural sciences, 010305 fluids & plasmas, Vibration, Nonlinear system, 0103 physical sciences, Optoelectronics, 010306 general physics, business, Optomechanics
Abstract

International audience; In canonical optomechanical systems, mechanical vibrations are dynamically encoded on an optical probe field, which reciprocally exerts a backaction force. Because of the weak single-photon coupling strength achieved with macroscopic oscillators, most of the existing experiments were conducted with large photon numbers to achieve sizable effects, thereby hiding the original optomechanical nonlinearity. To increase the optomechanical interaction, we make use of subwavelength-sized ultrasensitive suspended nanowires inserted in the mode volume of a fiber-based microcavity. By scanning the nanowire within the cavity mode volume and measuring its impact on the cavity mode, we obtain a map of the 2D optomechanical interaction. Then, by using the toolbox of nanowire-based force-sensing protocols, we explore the backaction of the optomechanical interaction and map the optical force field experienced by the nanowire. These measurements also allow us to demonstrate the possibility to detect variations of the mean intracavity photon number smaller than unity. This implementation should also allow us to enter the promising regime of cavity optomechanics, where a single intracavity photon can displace the oscillator by more than its zero-point fluctuations, which will open novel perspectives in the field.

Published
2021

7. Trapping of rare earth-doped nanorods using quasi Bessel beam optical fiber tweezers

Author

Aashutosh Kumar, Thierry Gacoin, U. Tiwari, R. A. Minz, Jochen Fick, S. Nic Chormaic, Khalid Lahlil, Samir K. Mondal, Nano-Optique et Forces (NOF), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Laboratoire de Physique de la Matière Condensée (LPMC), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), and Central Scientific Instruments Organisation (CSIR)

Subjects
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Optical fiber, Materials science, business.industry, Optical force, Optical power, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention, 010309 optics, Axicon, Optical tweezers, law, 0103 physical sciences, Bessel beam, Optoelectronics, Nanorod, Fiber, Electrical and Electronic Engineering, 0210 nano-technology, business
Abstract

We demonstrate optical trapping of rare earth-doped NaYF4:Er/Yb nanorods of high aspect ratio (length 1.47 μm and diameter 140 nm) using a quasi Bessel beam (QBB) generated by positive axicon optical fiber tips. Propulsion or trapping of the nanorods is demonstrated using either single or dual fiber nano-tip geometries. The optical force exerted on the trapped nanorods, their velocities, and their positions have been analyzed. We determine the trap stiffness for a single nanorod to be 0.12 pN/μm (0.003 pN/μm) by power spectrum analysis and 0.13 pN/μm (0.015 pN/μm) by Boltzmann statistics in the direction perpendicular to (along) the fiber axes for an average optical power of 34 mW. The experiments illustrate the advantage of using a QBB for multiple nanorod trapping over a large distance of up to 30 μm.

Published
2021

8. Making sense of Born's rule p α = Ψ α 2 with the many-worlds interpretation

Author

Drezet, Aurélien, Nano-Optique et Forces (NOF), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)

Subjects
[PHYS]Physics [physics], many-minds, probability, Born's rule, Everett
Abstract

International audience; This work is an attempt to justify Born's rule within the framework of the many-worlds interpretation proposed by Everett. Here, we develop a unitary model of many-minds based on the work of Albert and Loewer (Synthese 77, 195 (1988)). At the difference of the model of Albert and Loewer ours is not genuinely stochastic and dualistic and also involves some classicallike randomness based on ignorance about initial conditions of the Universe. We also compare the present method for recovering Born's rule with previous works based on Decision theory a la Deutsch Wallace and envariance a la Zurek and found that all these approaches are strongly related to each other.

Published
2021

9. The guidance theorem of de Broglie

Author

Drezet, Aurélien, Nano-Optique et Forces (NOF), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)

Subjects
[PHYS]Physics [physics], Physics::General Physics, Quantum Physics, Physics::History of Physics
Abstract

International audience; We review some aspects of the double solution theory proposed by de Broglie at the beginning of the quantum era (i.e., in the period 1924-28). We specifically analyze and rederive the so called guidance theorem which is a key element of the full theory. We compare the double solution approach to the most known pilot-wave interpretation, also known as de Broglie-Bohm or Bohmian mechanics. We explain why de Broglie rejected the pilot wave interpretation and advocated the double solution. We also discuss some philosophical issues related to difference of strategies between de Broglie on the one side and Bohm on the other side. Le grand drame de la microphysique contemporaine aété, vous le savez, la découverte de la dualité des ondes et des corpuscules[1]

Published
2021

10. Entangled and correlated photon mixed strategy for social decision making

Author

Shion Maeda, Nicolas Chauvet, Makoto Naruse, Serge Huant, Hirokazu Hori, Hayato Saigo, Guillaume Bachelier, Graduate School of Engineering [The Univ of Tokyo] (UTokyo), The University of Tokyo (UTokyo), Nagahama Institute of Bio-Science and Technology, University of Yamanashi, Partenaires INRAE, Nano-Optique et Forces (NOF), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)

Subjects
FOS: Computer and information sciences, Mathematical optimization, Computer science, Mathematics and computing, Science, Evolutionary game theory, FOS: Physical sciences, Computer Science - Emerging Technologies, 02 engineering and technology, Article, 020210 optoelectronics & photonics, Strategy, 0202 electrical engineering, electronic engineering, information engineering, Social decision making, Resource management, Single photons and quantum effects, Quantum Physics, Multidisciplinary, 021001 nanoscience & nanotechnology, Group decision-making, Emerging Technologies (cs.ET), Optics and photonics, [PHYS.COND.CM-GEN]Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other], Medicine, Quantum Physics (quant-ph), 0210 nano-technology, Game theory, Optics (physics.optics), Physics - Optics
Abstract

Collective decision making is important for maximizing total benefits while preserving equality among individuals in the competitive multi-armed bandit (CMAB) problem, wherein multiple players try to gain higher rewards from multiple slot machines. The CMAB problem represents an essential aspect of applications such as resource management in social infrastructure. In a previous study, we theoretically and experimentally demonstrated that entangled photons can physically resolve the difficulty of the CMAB problem. This decision-making strategy completely avoids decision conflicts while ensuring equality. However, decision conflicts can sometimes be beneficial if they yield greater rewards than non-conflicting decisions, indicating that greedy actions may provide positive effects depending on the given environment. In this study, we demonstrate a mixed strategy of entangled- and correlated-photon-based decision-making so that total rewards can be enhanced when compared to the entangled-photon-only decision strategy. We show that an optimal mixture of entangled- and correlated-photon-based strategies exists depending on the dynamics of the reward environment as well as the difficulty of the given problem. This study paves the way for utilizing both quantum and classical aspects of photons in a mixed manner for decision making and provides yet another example of the supremacy of mixed strategies known in game theory, especially in evolutionary game theory.

Published
2020

11. Fabrication and Magnetic Actuation of 3D‐Microprinted Multifunctional Hybrid Microstructures

Author

Olivier Stephan, Florence Marchi, Roxane Pétrot, Victor Vieille, Thibaut Devillers, Guillaume Delattre, O. Cugat, Marc Verdier, Laboratoire Interdisciplinaire de Physique [Saint Martin d’Hères] (LIPhy ), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Nano-Optique et Forces (NOF), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Science et Ingénierie des Matériaux et Procédés (SIMaP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Laboratoire de Génie Electrique de Grenoble (G2ELab ), and Micro et NanoMagnétisme (MNM)

Subjects
Materials science, Fabrication, Nanotechnology, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, Microstructure, 01 natural sciences, Industrial and Manufacturing Engineering, 0104 chemical sciences, [SPI]Engineering Sciences [physics], Mechanics of Materials, General Materials Science, 0210 nano-technology, Magnetic actuation, Hybrid material, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2020

12. An Interactive micromanipulation station combined to a confocal XRF instrument: proof of concept

Author

Sabine Douillet, D. Tonneau, Florence Marchi, Hichem Maradj, David Renahy, Sebastien Lavandier, Carole Fauquet, Clément Girod, Nano-Optique et Forces (NOF), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Aix Marseille Université (AMU), Centre Interdisciplinaire de Nanoscience de Marseille (CINaM), Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU), Automatisation et Caractérisation (AUTOCARAC), Nano-Optique et Forces (NEEL - NOF), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), and Automatisation & caractérisation (NEEL - AUTOCARAC)

Subjects
Grippers, Computer science, Proof of concept, business.industry, Confocal, Computer graphics (images), ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, business, Force sensor, ComputingMilieux_MISCELLANEOUS, Haptic technology, Graphical user interface, [SPI.AUTO]Engineering Sciences [physics]/Automatic
Abstract

We designed and developed an interactive micromanipulation station based on a commercial microgripper equipped with a force sensor. Through a haptic device and a custom-developed Graphical User Interface (GUI), the user can pilot the different parts of the station. This interactive station has been combined to a confocal X-ray Fluorescence (XRF) instrument. A tip-shaped W microwire has been remotely manipulated and placed within the tightly focused X-ray spot of the equipment. Several XRF spectra have been recorded along the tip extremity. This led to the determination of the ultimate volume resolution that can be achieved with this laboratory confocal XRF instrument.

Published
2020

13. Improved optical fiber tweezers using 3D printed Fresnel lenses

Author

Asadollahbaik, Asa, Thiele, Simon, Weber, Ksenia, Kumar, Aashutosh, Drozella, Johannes, Herkommer, Alois, Giessen, Harald, Fick, Jochen, University of Stuttgart, Nano-Optique et Forces (NOF), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)

Subjects
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]
Abstract

SPIE Photonics Europe, 2020, Online Only; International audience

Published
2020

14. Double-heterodyne probing for ultra-stable laser based on spectral hole burning in a rare-earth doped crystal

Author

Y. Le Coq, S. Zhang, Bess Fang, Philippe Goldner, Alban Ferrier, H. Alvarez-Martinez, S. Seidelin, N. Lučić, N. Galland, R. Le Targat, Nano-Optique et Forces (NOF), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Laboratoire national de métrologie et d'essais - Systèmes de Référence Temps-Espace (LNE - SYRTE), Systèmes de Référence Temps Espace (SYRTE), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Real Instituto y Observatorio de la Armada (ROA), Chimie ParisTech, Université PSL, CNRS, Institut de Recherche de Chimie Paris, 75005 Paris, France, Sorbonne Université (SU), Institut Universitaire de France (IUF), and Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.)

Subjects
Materials science, rare earth, Fast Fourier transform, FOS: Physical sciences, Perturbation (astronomy), Applied Physics (physics.app-ph), 02 engineering and technology, 01 natural sciences, Instability, law.invention, 010309 optics, Optics, law, Fiber laser, 0103 physical sciences, nanoqtech, quantum technologies, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, Doping, Spectral density, Physics - Applied Physics, 021001 nanoscience & nanotechnology, Laser, Atomic and Molecular Physics, and Optics, Spectral hole burning, 0210 nano-technology, business, Optics (physics.optics), Physics - Optics
Abstract

We present an experimental technique for realizing a specific absorption spectral pattern in a rare-earth-doped crystal at cryogenic temperatures. This pattern is subsequently probed on two spectral channels simultaneously, thereby producing an error signal allowing frequency locking of a laser on the said spectral pattern. Appropriate combination of the two channels leads to a substantial reduction in detection noise, paving the way to realizing an ultra-stable laser for which the detection noise can be made arbitrarily low when using multiple channels. We use this technique to realize a laser with a frequency instability of 1.7 × 1 0 − 15 at 1 s, not limited by the detection noise but by environmental perturbation of the crystal. This is comparable with the lowest instability demonstrated at 1 s to date for rare-earth-doped crystal stabilized lasers.

Published
2020

15. Experimental demonstration of random walk by probability chaos using single photons

Author

Martin Berthel, Aurélien Drezet, Serge Huant, Hirokazu Hori, Makoto Naruse, The University of Tokyo (UTokyo), Nano-Optique et Forces (NOF), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), University of Yamanashi, Partenaires INRAE, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Work (thermodynamics), Photon, Chaotic, Complex system, General Physics and Astronomy, FOS: Physical sciences, 02 engineering and technology, 7. Clean energy, 01 natural sciences, 0103 physical sciences, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), Statistical physics, ComputingMilieux_MISCELLANEOUS, 010302 applied physics, Physics, [PHYS]Physics [physics], Condensed Matter - Mesoscale and Nanoscale Physics, Oscillation, General Engineering, 021001 nanoscience & nanotechnology, Random walk, Mean squared displacement, Quantum dot, [PHYS.COND.CM-GEN]Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other], 0210 nano-technology, Physics - Optics, Optics (physics.optics)
Abstract

International audience; In our former work (Sci. Rep. 4: 6039, 2014), we theoretically and numerically demonstrated that chaotic oscillation can be induced in a nanoscale system consisting of quantum dots between which energy transfer occurs via optical near-field interactions. Furthermore, in addition to the nanoscale implementation of oscillators, it is intriguing that the chaotic behavior is associated with probability derived via a density matrix formalism. Indeed, in our previous work (Sci. Rep. 6: 38634, 2016) we examined such oscillating probabilities via diffusivity analysis by constructing random walkers driven by chaotically driven bias. In this study, we experimentally implemented the concept of probability chaos using a single-photon source that was chaotically modulated by an external electro-optical modulator that directly yielded random walkers via single-photon observations after a polarization beam splitter. An evident signature was observed in the resulting ensemble average of the time-averaged mean square displacement. Although the experiment involved a scaled-up, proof-of-concept model of a genuine nanoscale oscillator, the experimental observations clearly validate the concept of oscillating probability, paving the way toward future ideal nanoscale systems.

Published
2020

16. Hybrid KTP–Plasmonic Nanostructures for Enhanced Nonlinear Optics at the Nanoscale

Author

Guillaume Laurent, Gilles Nogues, Maeliss Ethis de Corny, Serge Huant, Mathieu Jeannin, Nicolas Chauvet, Géraldine Dantelle, Guillaume Bachelier, Thierry Gacoin, Institut Néel (NEEL), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Department of Information Physics and Computing, University of Tokyo, Laboratoire de physique de la matière condensée (LPMC), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), ANR-14-CE26-0001,TWIN,Source à deux photons dans les nano-antennes plasmoniques hybrides(2014), ANR: LANEF,ANR-10-LABX-51-01 - LABEX LANEF, Nano-Optique et Forces (NOF), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Nanophysique et Semiconducteurs (NPSC), École polytechnique (X), Optique et Matériaux (OPTIMA), ANR-10-LABX-0051,LANEF,Laboratory of Alliances on Nanosciences - Energy for the Future(2010), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Imagination, Materials science, Chemical substance, media_common.quotation_subject, FOS: Physical sciences, Physics::Optics, 02 engineering and technology, 01 natural sciences, 010309 optics, Search engine, Second Order Nonlinear Optics, 0103 physical sciences, Electrical and Electronic Engineering, Nanoscopic scale, Plasmon, ComputingMilieux_MISCELLANEOUS, media_common, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, Second-harmonic generation, Nonlinear optics, 021001 nanoscience & nanotechnology, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Second Harmonic Generation, [PHYS.COND.CM-GEN]Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other], Optoelectronics, Plasmonics, Hybrid nanostructure, 0210 nano-technology, Science, technology and society, business, Single Particle, Optics (physics.optics), Physics - Optics, Biotechnology
Abstract

The search for miniaturized components for nonlinear optical processes needs a way to overcome the efficiency loss due to the effective size reduction of the active medium. We investigate here a combination of a nanosized nonlinear dielectric crystal and metallic nanoantennas that benefits from both the intrinsic nonlinear conversion efficiency of the nonlinear medium and the local-field enhancement of plasmonic resonances in metallic nanostructures. Careful comparison between experiments and numerical simulations reveals that the observed 10 to 1000 fold enhancement in Second Harmonic Generation intensity between isolated elements and their hybrid structure can be attributed unequivocally to the field enhancement effect of plasmonic resonances on the nonlinear crystal for gold - crystal structures, while the enhancement observed in aluminum-based hybrid structures is attributed to linear dielectric effect on the plasmonic antennas., 5 figures

Published
2020

17. Mechanical analog of quantum bradyons and tachyons

Author

Arnaud Ralko, Donatien Bertschy, Cédric Poulain, Pierre Jamet, Aurélien Drezet, Nano-Optique et Forces (NOF), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Théorie de la Matière Condensée (TMC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)

Subjects
Field (physics), [PHYS.MPHY]Physics [physics]/Mathematical Physics [math-ph], FOS: Physical sciences, Physics - Classical Physics, 01 natural sciences, String (physics), Nonlinear Dynamics and Chaos, 010305 fluids & plasmas, Momentum, 0103 physical sciences, 010306 general physics, Quantum, ComputingMilieux_MISCELLANEOUS, Physics, [PHYS]Physics [physics], Quantum Physics, Classical Physics (physics.class-ph), Nonlinear Sciences - Chaotic Dynamics, Nonlinear Sciences - Adaptation and Self-Organizing Systems, Duality (electricity and magnetism), Classical mechanics, Tachyon, Particle, Matter wave, Chaotic Dynamics (nlin.CD), Quantum Physics (quant-ph), Adaptation and Self-Organizing Systems (nlin.AO)
Abstract

We present a mechanical analog of a quantum wave-particle duality: a vibrating string threaded through a freely moving bead or `masslet'. For small string amplitudes, the particle movement is governed by a set of non-linear dynamical equations that couple the wave field to the masslet dynamics. Under specific conditions, the particle achieves a regime of {\it transparency} in which the field and the particle's dynamics appear decoupled. In that special case, the particle conserves its momentum and a guiding wave obeying a Klein-Gordon equation, with real or imaginary mass, emerges. Similar to the double-solution theory of de Broglie, this guiding wave is locked in phase with a modulating group-wave co-moving with the particle. Interestingly, both subsonic and supersonic particles can fall into a quantum regime as with the slower-than-light bradyons and hypothetical, faster-than-light tachyons of particle physics., 10 pages, 3 figures, 1 video (Supp. Mat)

Published
2020

18. Inhomogeneous response of an ion ensemble from mechanical stress

Author

S. Zhang, N. Lučić, Y. Le Coq, Bess Fang, Philippe Goldner, Nicolas Galland, S. Seidelin, R. Le Targat, Alban Ferrier, Systèmes de Référence Temps Espace (SYRTE), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Nano-Optique et Forces (NOF), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Institut de Recherche de Chimie Paris (IRCP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Ministère de la Culture (MC), and Sorbonne Université (SU)

Subjects
quantum technologies, [PHYS]Physics [physics], Condensed Matter - Materials Science, Materials science, Condensed matter physics, rare earth, Measure (physics), Materials Science (cond-mat.mtrl-sci), FOS: Physical sciences, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Ion, Stress (mechanics), stress, 0103 physical sciences, mechanical resonator, Local environment, nanoqtech, 010306 general physics, 0210 nano-technology, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], ComputingMilieux_MISCELLANEOUS, Physics - Optics, Optics (physics.optics)
Abstract

Material strain has recently received growing attention as a complementary resource to control the energy levels of quantum emitters embedded inside a solid-state environment. Some rare-earth ion dopants provide an optical transition which simultaneously has a narrow linewidth and is highly sensitive to strain. In such systems, the technique of spectral hole burning, in which a transparent window is burned within the large inhomogeneous profile, allows one to benefit from the narrow features, which are also sensitive to strain, while working with large ensembles of ions. However, working with ensembles may give rise to inhomogeneous responses among different ions. We investigate experimentally how the shape of a narrow spectral hole is modified due to external mechanical strain, in particular, the hole broadening as a function of the geometry of the crystal sites and the crystalline axis along which the stress is applied. Studying these effects is essential in order to optimize the existing applications of rare-earth-doped crystals in fields which already profit from the more-well-established coherence properties of these dopants, such as frequency metrology and quantum information processing, or even suggest alternative applications of these materials, for example, as robust devices for force-sensing or highly sensitive accelerometers.

Published
2020
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19. Microscale crystalline rare-earth doped resonators for strain-coupled optomechanics

Author

Bess Fang, Philippe Goldner, Nicolas Galland, S. Seidelin, Nemenja Lučić, S. Zhang, J. F. Motte, Alban Ferrier, Yann Le Coq, Jérôme Debray, Nanofab (Nanofab ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nano-Optique et Forces (NOF ), Laboratoire national de métrologie et d'essais - Systèmes de Référence Temps-Espace (LNE - SYRTE), Systèmes de Référence Temps Espace (SYRTE), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Cristaux Massifs (CrisMass), Université Paris sciences et lettres (PSL), Sorbonne Université (SU), Institut Universitaire de France (IUF), and Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.)

Subjects
Mechanical Resonators, Cantilever, Materials science, FOS: Physical sciences, Applied Physics (physics.app-ph), 01 natural sciences, 7. Clean energy, Crystal, Resonator, [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph], Etching (microfabrication), Strain- coupling, Condensed Matter::Superconductivity, 0502 economics and business, 0103 physical sciences, Microscale chemistry, Optomechanics, Quantum Physics, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Dopant, 010308 nuclear & particles physics, business.industry, 05 social sciences, Rare-earth Doped Crystals, Focused-Ion-Beam Etching Techniques, Spectral Hole Burning, Physics - Applied Physics, Quantum technology, Optoelectronics, business, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], 050203 business & management, Physics - Optics, Optics (physics.optics)
Abstract

Rare-earth ion doped crystals for hybrid quantum technologies are an area of growing interest in the solid-state physics community. We have earlier theoretically proposed a hybrid scheme of a mechanical resonator which is fabricated out of a rare-earth doped mono-crystalline structure. The rare-earth ion dopants have absorption energies which are sensitive to crystal strain, and it is thus possible to couple the ions to the bending motion of the crystal cantilever. This type of resonator can be useful for either investigating the laws of quantum physics with material objects or for applications such as sensitive force-sensors. Here, we present the design and fabrication method based on focused-ion-beam etching techniques which we have successfully employed in order to create such microscale resonators, as well as the design of the environment which will allow studying the quantum behavior of the resonators.

Published
2020
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20. Highly Efficient Dual-Fiber Optical Trapping with 3D Printed Diffractive Fresnel Lenses

Author

Jochen Fick, Ksenia Weber, Asa Asadollahbaik, Florian Sterl, Alois Herkommer, Harald Giessen, Aashutosh Kumar, Johannes Drozella, Simon Thiele, University of Stuttgart, Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), and Universität Stuttgart [Stuttgart]

Subjects
3d printed, Facet (geometry), [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Materials science, business.industry, Physics::Optics, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Dual (category theory), 010309 optics, Optics, Optical tweezers, 0103 physical sciences, Mathematics::Metric Geometry, Physics::Atomic Physics, Fiber, Electrical and Electronic Engineering, 0210 nano-technology, business, ComputingMilieux_MISCELLANEOUS, Biotechnology
Abstract

Highly efficient counter-propagating fiber-based optical traps are presented which utilize converging beams from fibers with 3D printed diffractive Fresnel lenses on their facet. The use of a conve...

Published
2019

21. Eigenmode orthogonality breaking and anomalous dynamics in multimode nano-optomechanical systems under non-reciprocal coupling

Author

Mercier De Lépinay, Laure, Pigeau, Benjamin, Besga, Benjamin, Arcizet, Olivier, Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Laboratoire de Physique de l'ENS Lyon (Phys-ENS), École normale supérieure - Lyon (ENS Lyon)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, Nano-Optique et Forces (NEEL - NOF), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), and ANR-16-CE09-0028,QCForce,Mesure vectorielle et ulta-sensible de champ de force a l'interface classique/quantique(2016)

Subjects
[PHYS]Physics [physics], Science, Physics::Optics, lcsh:Q, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, lcsh:Science, Article
Abstract

Thermal motion of nanomechanical probes directly impacts their sensitivities to external forces. Its proper understanding is therefore critical for ultimate force sensing. Here, we investigate a vectorial force field sensor: a singly-clamped nanowire oscillating along two quasi-frequency-degenerate transverse directions. Its insertion in a rotational optical force field couples its eigenmodes non-symmetrically, causing dramatic modifications of its mechanical properties. In particular, the eigenmodes lose their intrinsic orthogonality. We show that this circumstance is at the origin of an anomalous excess of noise and of a violation of the fluctuation dissipation relation. Our model, which quantitatively accounts for all observations, provides a novel modified version of the fluctuation dissipation theorem that remains valid in non-conservative rotational force fields, and that reveals the prominent role of non-axial mechanical susceptibilities. These findings help understand the intriguing properties of thermal fluctuations in non-reciprocally-coupled multimode systems., Understanding the dynamics of nanomechanical probes is important for improving high-sensitivity force field sensing. Here, the authors study the vibrations of a suspended nanowire in the presence of a rotational optical force field which breaks the orthogonality of the nanoresonator eigenmodes.

Published
2018

22. Interference Eraser Experiment Demonstrated with All-Plasmonic Which-Path Marker Based on Reverse Spin Hall Effect of Light

Author

Cyriaque Genet, Joel Bellessa, Aurélien Drezet, Quanbo Jiang, Airong Zhao, Aline Pham, Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut Lumière Matière [Villeurbanne] (ILM), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, Institut de Science et d'ingénierie supramoléculaires (ISIS), and Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)

Subjects
polarization tomography, interference eraser, Photon, Light, Optical communication, Physics::Optics, spin−orbit coupling, 02 engineering and technology, metamaterial, Quantum mechanics, 01 natural sciences, law.invention, 010309 optics, law, Polarization, 0103 physical sciences, Electrical and Electronic Engineering, Plasmon, [PHYS]Physics [physics], Physics, business.industry, surface plasmon polaritons, Surface plasmon, Metamaterial, Polarizer, 021001 nanoscience & nanotechnology, Surface plasmon polariton, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Spin Hall effect, Plasmonics, Optoelectronics, Kinetic parameters, 0210 nano-technology, business, Biotechnology
Abstract

International audience; We report on the reciprocal spin Hall effect of light in T-shaped nanoaperture arrays. Specifically, we demonstrate that the information tied to surface plasmons trajectories can be encoded into free-space spin-carrying photons. The functionality of the system to act as a circular polarizer is therefore implemented in an interference eraser experiment where the device is used as a which-path marker. Complementarity between the wave-like and particle-like behavior of surface plasmons is verified, hence, further demonstrating the outlook for miniaturized optical elements toward on-chip quantum experiments. This work underscores the high potential of plasmonic devices in the realization of integrated polarization optics, hence, opening promising prospects for nanoscale optical communications and quantum photonic network.

Published
2018

23. Experimental Verification of Entanglement Generated in a Plasmonic System

Author

Stefan A. Maier, Frederik Dieleman, Yannick Sonnefraud, Mark Tame, Myungshik Kim, Engineering & Physical Science Research Council (EPSRC), Imperial College London, Nano-Optique et Forces (NOF ), Institut Néel (NEEL), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])

Subjects
FOS: Physical sciences, Bioengineering, 02 engineering and technology, Quantum entanglement, Squashed entanglement, 01 natural sciences, Photon entanglement, Quantum mechanics, MD Multidisciplinary, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), 0103 physical sciences, Quantum metrology, General Materials Science, Nanoscience & Nanotechnology, 010306 general physics, Amplitude damping channel, ComputingMilieux_MISCELLANEOUS, [PHYS]Physics [physics], Physics, Quantum Physics, Quantum discord, Condensed Matter - Mesoscale and Nanoscale Physics, Mechanical Engineering, Quantum sensor, General Chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Quantum plasmonics, W state, entanglement, Quantum Physics (quant-ph), 0210 nano-technology, Physics - Optics, nanophotonic waveguides, Optics (physics.optics)
Abstract

A core process in many quantum tasks is the generation of entanglement. It is being actively studied in a variety of physical settings - from simple bipartite systems to complex multipartite systems. In this work we experimentally study the generation of bipartite entanglement in a nanophotonic system. Entanglement is generated via the quantum interference of two surface plasmon polaritons in a beamsplitter structure, i.e. utilising the Hong-Ou-Mandel (HOM) effect, and its presence is verified using quantum state tomography. The amount of entanglement is quantified by the concurrence and we find values of up to 0.77 +/- 0.04. Verifying entanglement in the output state from HOM interference is a nontrivial task and cannot be inferred from the visibility alone. The techniques we use to verify entanglement could be applied to other types of photonic system and therefore may be useful for the characterisation of a range of different nanophotonic quantum devices., Comment: 7 pages, 4 figures

Published
2017

24. Single Photon in Hierarchical Architecture for Physical Decision Making: Photon Intelligence

Author

Makoto Naruse, Aurélien Drezet, Song-Ju Kim, Hirokazu Hori, Martin Berthel, Serge Huant, photonic network Research Institute, National, Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Yamanashi University, WPI Center for Materials Nanoarchitectonics, and National Institute for Materials Science (NIMS)

Subjects
0301 basic medicine, Photon, Computer science, business.industry, 01 natural sciences, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, 03 medical and health sciences, 030104 developmental biology, [PHYS.COND.CM-GEN]Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other], 0103 physical sciences, Scalability, Reinforcement learning, Artificial intelligence, Electrical and Electronic Engineering, Architecture, 010306 general physics, business, Past study, ComputingMilieux_MISCELLANEOUS, Biotechnology
Abstract

Understanding and using photonic processes for intelligent functionalities, referred to as photonic intelligence, has recently attracted interest from a variety of fields, including postsilicon computing for artificial intelligence and decision making in the behavioral sciences. In a past study, we successfully used the wave–particle duality of single photons to solve the two-armed bandit problem, which constitutes one of the important foundations of decision making and reinforcement learning. In this paper, we propose and confirm a hierarchical architecture for single-photon-based decision making that verifies the scalability of the principle. Specifically, the four-armed bandit problem is solved given zero prior knowledge in a two-layer hierarchical architecture, where the polarization of single photons is autonomously adapted in order to effect adequate decision making. In the hierarchical structure, the notion of layer-dependent decisions emerges. The optimal solutions in the coarse layer and the fine...

Published
2016

25. A Lagrangian formulation for a gravitational analogue of the acoustic radiation force

Author

Aurélien Drezet, Cédric Poulain, Jérôme Duplat, Pierre-Yves Gires, Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Service des Basses Températures (SBT ), Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), and Nano-Optique et Forces (NEEL - NOF)

Subjects
Physics, [PHYS]Physics [physics], Buoyancy, Field (physics), General Physics and Astronomy, Mechanics, [PHYS.MECA]Physics [physics]/Mechanics [physics], engineering.material, 01 natural sciences, 010305 fluids & plasmas, Gravitation, Wavelength, Acceleration, symbols.namesake, 0103 physical sciences, engineering, symbols, Rayleigh scattering, 010306 general physics, Sound pressure, Acoustic radiation force
Abstract

International audience; In this letter, we propose an expression for the instantaneous acoustic radiation force acting on a compressible sphere when it is immersed in a sound field with a wavelength much larger than the particle size (Rayleigh scattering regime). By following a Lagrangian approach, we show that the leading term of the radiation force can alternatively be expressed as a fluctuating gravitation-like force. In other words, the effect of the acoustic pressure gradient is to generate a local acceleration field encompassing the sphere, which gives rise to an apparent buoyancy force, making the object move in the incoming field. When averaging over time, we recover the celebrated Gor'kov expression and emphasize that two terms appear, one local and one convective, which identify with the well-known monopolar and dipolar contributions.

Published
2019

26. Excitation of whispering gallery modes with a 'point-and-play,' fiber-based, optical nano-antenna

Author

Síle Nic Chormaic, Stephy Vincent, Pooja Gupta, Fuchuan Lei, Jonathan M. Ward, Jochen Fick, Samir K. Mondal, Quantum Optics Group, University College Cork (UCC)-Science Foundation Ireland-Tyndall National Institute, Nano-Optique et Forces (NOF ), Institut Néel (NEEL), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])

Subjects
FOS: Physical sciences, Physics::Optics, 02 engineering and technology, Fano plane, 01 natural sciences, Spectral line, 010309 optics, symbols.namesake, Optics, 0103 physical sciences, Rayleigh scattering, ComputingMilieux_MISCELLANEOUS, Physics, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, Cavity quantum electrodynamics, 021001 nanoscience & nanotechnology, Polarization (waves), Atomic and Molecular Physics, and Optics, 3. Good health, Metrology, symbols, Whispering-gallery wave, 0210 nano-technology, business, Excitation, Optics (physics.optics), Physics - Optics
Abstract

We demonstrate the excitation and detection of whispering gallery modes in optical microresonators using a "point-and-play", fiber-based, optical nano-antenna. The coupling mechanism is based on cavity-enhanced Rayleigh scattering. Collected spectra exhibit Lorentzian dips, Fano shapes, or Lorentzian peaks, with a coupling efficiency around 13\%. The spectra are characterized by the coupling gap, polarization, and fiber tip position. The coupling method is simple, low-cost and, most importantly, the \textit{Q}-factor can be maintained at $10^8$ over a wide coupling range, thereby making it suitable for metrology, sensing, or cavity quantum electrodynamics (cQED) experiments.

Published
2019

27. Unidirectional light transmiission by two-layer nanostructures interacting via optical near-fields

Author

Satoshi Ishii, Aurélien Drezet, Serge Huant, J. F. Motte, Hirokazu Hori, Makoto Naruse, National Institute of Information and Communications Technology [Tokyo, Japan] (NICT), Nanofab (Nanofab ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nano-Optique et Forces (NOF ), and Yamanashi University

Subjects
Light transmission, Nanostructure, Materials science, Two layer, FOS: Physical sciences, Physics::Optics, General Physics and Astronomy, 02 engineering and technology, 01 natural sciences, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), 0103 physical sciences, ComputingMilieux_MISCELLANEOUS, 010302 applied physics, Condensed Matter - Mesoscale and Nanoscale Physics, business.industry, Nanostructured materials, Energy conversion efficiency, General Engineering, 021001 nanoscience & nanotechnology, Reciprocity (electromagnetism), [PHYS.COND.CM-GEN]Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other], Optoelectronics, Metal nanostructures, 0210 nano-technology, business, Optics (physics.optics), Physics - Optics
Abstract

We experimentally demonstrate unidirectional light transmission through two-layer nanostructured materials considering that the horizontal-to-vertical-polarization conversion efficiency in the forward direction and the vertical-to-horizontal efficiency in the backward direction, which are usually equivalent due to optical reciprocity, are different. The different ways of transferring light momentum in the forward and backward directions via optical near-fields between the layers are responsible for the unidirectionality of light, which was theoretically investigated in our recent work Naruse et al. [J. Opt. Soc. Am. B 31, 2404 (2014)]. With two-layer metal nanostructures experimentally fabricated via a repeated lift-off technique, consistent optical characteristics are observed, verifying the utilization of the large momentum of optical near-fields.

Published
2019

28. Cavity nano-optomechanics in the ultrastrong coupling regime with ultrasensitive force sensors

Author

Fogliano, Francesco, Besga, Benjamin, Reigue, Antoine, Heringlake, Philip, de Lépinay, Laure Mercier, Vaneph, Cyril, Reichel, Jakob, Pigeau, Benjamin, Arcizet, Olivier, Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Laboratoire Kastler Brossel (LKB (Lhomond)), Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS]Physics [physics], Quantum Physics, optical force, Physics::Optics, FOS: Physical sciences, cavity optomechanics, force sensing, Quantum Physics (quant-ph), nanomechanics
Abstract

In a canonical optomechanical system, mechanical vibrations are dynamically encoded on an optical probe field which reciprocally exerts a backaction force. Due to the weak single photon coupling strength achieved with macroscopic oscillators, most of existing experiments were conducted with large photon numbers to achieve sizeable effects, thereby causing a dilution of the original optomechanical non-linearity. Here, we investigate the optomechanical interaction of an ultrasensi-tive suspended nanowire inserted in a fiber-based microcavity mode. This implementation allows to enter far into the hitherto unexplored ultrastrong optomechanical coupling regime, where one single intracavity photon can displace the oscillator by more than its zero point fluctuations. To fully characterize our system, we implement nanowire-based scanning probe measurements to map the vectorial optomechanical coupling strength, but also to reveal the intracavity optomechanical force field experienced by the nanowire. This work establishes that the single photon cavity optomechanics regime is within experimental reach. Introduction-The field of optomechanics has gone through many impressive developments over the last decades [1]. The coupling between a probe light field and a mechanical degree of freedom, an oscillator, possibly assisted by a high finesse cavity was early proposed as an ideal platform to explore the quantum limits of ultrasen-sitive measurements, where the quantum fluctuations of the light are the dominant source of measurement noise [2-5]. The measurement backaction was also employed to manipulate the oscillator state through optical forces and dynamical backaction, leading to optomechanical correlations between both components of the system. In this framework, ground state cooling, mechanical detection of radiation pressure quantum noise, advanced correlation between light and mechanical states or optomechanical squeezing were reported [6-19]. All those impressive results were obtained in the linear regime of cavity optomechanics, making use of large photon numbers, where the interaction Hamiltonian is linearized around an operating setpoint. However, the optomechanical interaction possesses an intrinsic non-linearity at the single excitation level, which has for the moment remained far from experimental reach due to the weak single photon coupling strength achieved with macroscopic oscillators. This regime is achieved when a single photon in the cavity shifts the static rest position of the mechanical resonator by a quantity δx (1) which is larger than its zero point fluctuations δx zpf. A very strong optomechanical interaction is indeed needed to fulfil this condition since it requires g 0 /Ω m > 1 where g 0 is the single photon optomechanical coupling and Ω m the resonant pulsation of the mechanical oscillator. Operating in the ultra-strong coupling regime is thus an experimental

Published
2019
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29. Resonance fluorescence of a single semiconductor quantum dot : the impact of a fluctuating electrostatic environment

Author

Valia Voliotis, Richard Hostein, Antoine Reigue, Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Photons, Magnons et Technologies Quantiques (INSP-E11), Institut des Nanosciences de Paris (INSP), and Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Exciton, 02 engineering and technology, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, 01 natural sciences, Molecular physics, Electronic, Optical and Magnetic Materials, Semiconductor quantum dots, Resonance fluorescence, Quantum dot, 0103 physical sciences, Materials Chemistry, Electrical and Electronic Engineering, [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat], 010306 general physics, 0210 nano-technology
Abstract

International audience; Semiconductor quantum dots are very efficient sources of single and highly indistinguishable photons. These properties rely on the possibility to coherently control the system at the single spin level. At this ultimate level of control, the quantum dot becomes a very sensitive probe of its solid-state environment and any interaction turns into a dephasing process that alters its coherence properties. In this topical review, we give an overview of the issue of charge noise which remains one of the main dephasing mechanisms to overcome. This phenomenon which strongly depends on sample preparation, originates from a fluctuating electrostatic landscape around the quantum dots and renders a unified description quite awkward. We present the common characteristic features induced by charge noise that have been observed in the resonant fluorescence experiments of single quantum dots and discuss the different approaches that have been proposed in the literature to circumvent this problem.

Published
2019

30. About Wigner Friend’s and Hardy’s paradox in a Bohmian approach: a comment of 'Quantum theory cannot consistently describe the use of itself'

Author

Drezet, Aurélien, Drezet, Aurelien, Nano-Optique et Forces (NOF ), Institut Néel (NEEL), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])

Subjects
[PHYS]Physics [physics], observer-independent facts, Wigner Friend's, [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph], Nonlocality, Quantum Physics, [PHYS.QPHY] Physics [physics]/Quantum Physics [quant-ph], [PHYS] Physics [physics]
Abstract

International audience; This is an analysis of the recently published article 'Quantum theory cannot consistently describe the use of itself' by D. Frauchiger and R. Renner [1]. Here I decipher the paradox and analyze it from the point of view of de Broglie-Bohm hidden variable theory (i.e., Bohmian mechanics). I also analyze the problem from the perspective obtained by the Copenhagen interpretation (i.e., the Bohrian interpretation) and show that both views are self consistent and do not lead to any contradiction with a 'single-world' description of quantum theory. Hardy's paradox; Bohmian mechanics; Lorentz Invariance 1. Hardy's paradox The claim of this article is that the recently published article [1,2] by D. Frauchiger and R. Renner about Wigner's Friends [3] and entanglement is mainly a rephrasing of the beautiful Hardy paradox [4,5] about quantum non-locality without inequality (for a clear and nice derivation see also [6] by S. Goldstein; see also the Greenberger-Horne-Zeilinger (GHZ) paradox [7]). The authors of [1] recognize the importance of Hardy's letter in their own analysis but the argument is written in such a way that the relation is no immediately transparent. My aim is here to clarify this point from the point of view of Bohmian mechanics (i.e., de Broglie Bohm interpretation). During the analysis I will also consider

Published
2019

31. Common-Path Optical Coherence Tomography Using the Bessel Beam From Negative Axicon Optical Fiber Tip

Author

Umesh Tiwari, Samir K. Mondal, Jochen Fick, Pooja Gupta, Rashmi A. Minz, Kaushal Vairagi, Amit Pandey, Council of Scientific and Industrial Research [India] (CSIR), Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), and Council of Scientific and Industrial Research [India] ( CSIR )

Subjects
Materials science, Optical fiber, 02 engineering and technology, 01 natural sciences, law.invention, 010309 optics, Axicon, 020210 optoelectronics & photonics, Optics, Optical coherence tomography, Etching (microfabrication), law, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, medicine, Depth of field, Fiber, Electrical and Electronic Engineering, ComputingMilieux_MISCELLANEOUS, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics], medicine.diagnostic_test, business.industry, Atomic and Molecular Physics, and Optics, Bessel beam, business, Beam (structure)
Abstract

In this work, a deep-seated negative axicon fiber tip (DSNA-FT) generating the Bessel–Gauss beam is proposed as an optical probe for a common-path optical coherence tomography (CPOCT) imaging. The axicon at the optical fiber tip is fabricated by etching the tip of a selective optical fiber in hydrofluoric acid under the influence of capillary action. The nondiffracting type quasi-Bessel beam from the DSNA-FT having a long depth of field, ∼0.7 mm, is used for the CPOCT imaging of different type of samples, i.e., sticky tape, fish scale, and rice grain. The CPOCT with unique and simple optical fiber probe has achieved lateral resolution at least ∼3.3 μm maintained up to 3 mm working distance in air. This optical fiber tip is an excellent candidate for an endoscopic probe design.

Published
2019

32. On the origins of transport inefficiencies in mesoscopic networks

Author

Serge Huant, Marco G. Pala, Frederico Rodrigues Martins, Hermann Sellier, Benoît Hackens, Sébastien Toussaint, Vincent Bayot, Ludovic Desplanque, Sébastien Faniel, Xavier Wallart, Institut de la matière condensée et des nanosciences / Institute of Condensed Matter and Nanosciences (IMCN), Université Catholique de Louvain = Catholic University of Louvain (UCL), Centre de Nanosciences et de Nanotechnologies [Orsay] (C2N), Université Paris-Sud - Paris 11 (UP11)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Nano-Electronique Quantique et Spectroscopie (QuNES), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nano-Optique et Forces (NOF ), Centre de Nanosciences et de Nanotechnologies (C2N), Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), EPItaxie et PHYsique des hétérostructures - IEMN (EPIPHY - IEMN), Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-JUNIA (JUNIA), Nano-Electronique Quantique et Spectroscopie (NEEL - QuNES), Nano-Optique et Forces (NEEL - NOF), and This work was funded by the Fonds de la Recherche Scientifique FRS-FNRS (Grants No. J.0067.13, T.0172.13, U.N025.14, J.0009.16, and 2450312F) and by the Communauté Française de Belgique (ARC Grant No. 11/16-037, Stresstronics Project and ARC Grant No. 16/21-077, NATURIST Project). S.T. is funded by a Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture FRIA fellowship. B.H. is FRS-FNRS research associate. S.T. acknowledges all co-authors for their fruitful comments on the present work.

Subjects
Electron density, Perturbation (astronomy), lcsh:Medicine, Scanning gate microscopy, 02 engineering and technology, Two-dimensional materials, 01 natural sciences, Article, [SPI]Engineering Sciences [physics], Electrical resistance and conductance, 0103 physical sciences, Electronic devices, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, 010306 general physics, lcsh:Science, ComputingMilieux_MISCELLANEOUS, Physics, [PHYS]Physics [physics], Mesoscopic physics, Multidisciplinary, Condensed matter physics, lcsh:R, Coulomb blockade, Conductance, 021001 nanoscience & nanotechnology, Magnetic field, lcsh:Q, 0210 nano-technology
Abstract

A counter-intuitive behavior analogous to the Braess paradox is encountered in a two-terminal mesoscopic network patterned in a two-dimensional electron system (2DES). Decreasing locally the electron density of one channel of the network paradoxically leads to an increased network electrical conductance. Our low temperature scanning gate microscopy experiments reveal different occurrences of such puzzling conductance variations, thanks to tip-induced localized modifications of electron flow throughout the network’s channels in the ballistic and coherent regime of transport. The robustness of the puzzling behavior is inspected by varying the global 2DES density, magnetic field and the tip-surface distance. Depending on the overall 2DES density, we show that either Coulomb Blockade resonances due to disorder-induced localized states or Fabry-Perot interferences tuned by the tip-induced electrostatic perturbation are at the origin of transport inefficiencies in the network, which are lifted when gradually closing one channel of the network with the tip.

Published
2018

33. Optical trapping and orientation-resolved spectroscopy of europium-doped nanorods

Author

Jochen Fick, Khalid Lahlil, Gwénaëlle Julie, Síle Nic Chormaic, Aashutosh Kumar, Jeongmo Kim, Jongwook Kim, Thierry Gacoin, Nano-Optique et Forces (NOF), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Laboratoire de Physique de la Matière Condensée (LPMC), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique de la matière condensée (LPMC), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Nanofab (Nanofab), Quantum Optics Group, and University College Cork (UCC)-Science Foundation Ireland-Tyndall National Institute

Subjects
Microscope, Materials science, Optical fiber, Photoluminescence, Physics::Optics, chemistry.chemical_element, 02 engineering and technology, Trapping, 01 natural sciences, law.invention, 010309 optics, Condensed Matter::Materials Science, law, 0103 physical sciences, Electrical and Electronic Engineering, Spectroscopy, europium, Physics::Biological Physics, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], optical tweezers, business.industry, 021001 nanoscience & nanotechnology, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, chemistry, Optical tweezers, Optoelectronics, photoluminescence, Nanorod, optical fibre, nanorods, 0210 nano-technology, business, Europium
Abstract

Europium-doped NaYF4 nanorods with a high aspect ratio are optically trapped using a single fibre tip optical tweezers. Three distinct trapping positions of the nanorods are observed: in contact with the fibre tip, close to the tip and 5 µm from the tip end. The direction and polarisation-dependent Eu3 + photoluminescence is investigated by recording the emission parallel and perpendicular to the nanorod long axis through the trapping fibre and the microscope objective, respectively. These spectroscopic measurements permit an unambiguous determination of the nanorod orientation.

Published
2020

34. Plasmonic core–shell nanostructure as an optical photoactive nanolens for enhanced light harvesting and hydrogen production

Author

Zhenpeng Cui, Thomas Le Neel, Mohamed Nawfal Ghazzal, Hynd Remita, Christophe Colbeau-Justin, Getaneh Diress Gesesse, Guillaume Bachelier, Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Laboratoire de Chimie Physique D'Orsay (LCPO), and Université Paris-Sud - Paris 11 (UP11)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Nanostructure, Materials science, Hydrogen, chemistry.chemical_element, Nanotechnology, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, chemistry, Colloidal gold, Photocatalysis, General Materials Science, Surface plasmon resonance, 0210 nano-technology, Absorption (electromagnetic radiation), Plasmon, ComputingMilieux_MISCELLANEOUS, Hydrogen production
Abstract

Hydrogen production using plasmonic photocatalyst has attracted increasing attention since it improves light harvesting and photoefficiency. Herein, we have designed a plasmonic photocatalyst in a core-shell nanostructure that enabled an improvement of light harvesting and photocatalytic production of hydrogen using a very low amount of gold nanoparticles. The core-shell nanostructure was found to mimic the focusing of light observed for the lens-like epidermal cells. Thus, the core-shell nanostructure acts as a convex nanolens to reinforce the electromagnetic field at the nanostructure surface. The electric field was also found to be enhanced, which improves the energy absorbed for gold particles located in the core-shell nanostructure. Thus, by adjusting the diameter of the core-shell nanostructure, an optimal intensity for the localized surface plasmon resonance of gold was obtained. Tuning the size of the core-shell nanostructure enabled to improve the absorption at the reactive surface, thus increasing the photocatalytic hydrogen production efficiency by 5-fold.

Published
2018

35. Decision Making by Classical and Quantum Light

Author

Naruse, M., Chauvet, Nicolas, Jegouso, David, Uchida, A, Hori, H, Drezet, Aurelien, Boulanger, Benoit, Huant, Serge, Bachelier, Guillaume, Optique et microscopies (POM), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nano-Optique et Forces (NOF ), Optique et Matériaux (OPTIMA ), and Pena Revellez, Alexandra

Subjects
[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics], [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2018

36. Metasurface for Reciprocal Spin-Orbit Coupling of Light on Waveguiding Structures

Author

Julien Laverdant, Cecile Leluyer, Quanbo Jiang, Aurélien Drezet, Stephan Guy, Aline Pham, Joel Bellessa, C. Symonds, Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut Lumière Matière [Villeurbanne] (ILM), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)

Subjects
Silicon, General Physics and Astronomy, chemistry.chemical_element, Physics::Optics, Polarization of light, 02 engineering and technology, 01 natural sciences, Multiplexing, law.invention, 010309 optics, law, 0103 physical sciences, Spin-orbit coupling, Spin-½, Quantum computer, Block (data storage), Physics, [PHYS]Physics [physics], business.industry, Nanoantennas, Integrated optics, Spin–orbit interaction, 021001 nanoscience & nanotechnology, chemistry, Metamaterials, Angular momentum of light, Optoelectronics, Plasmonics, Photonics, 0210 nano-technology, business, Waveguide, Waveguides
Abstract

International audience; Light manipulation through spin-orbit coupling opens new perspectives in photonics and particularly in integrated optics. The reverse spin Hall effect, where the guided wave direction affects the polarization properties of the light scattered by a nanostructure, is a key effect for the development of new functionalities at the connection between integrated structures and free space, and could find application in chiral quantum optics, modulation, and multiplexing. We show that metasurfaces represent a promising platform for the reverse spin Hall effect. Using a periodic array of Λ-shaped metallic nanoantenna, we control the polarization of the extracted light with the guided wave-propagation direction, but also the number of output directions and the polarization of each one. These results and the versatility of metasurfaces for the spin Hall effect could be extended to various frequencies and materials, such as silicon photonics at telecom wavelength.

Published
2018

37. Optical chirality density and flux measured in the local density of states of spiral plasmonic structures

Author

Airong Zhao, Aline Pham, Aurélien Drezet, Cyriaque Genet, Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut de Science et d'ingénierie supramoléculaires (ISIS), Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Matériaux et nanosciences d'Alsace (FMNGE), and Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)

Subjects
Physics, [PHYS]Physics [physics], Local density of states, Field (physics), High Energy Physics::Lattice, High Energy Physics::Phenomenology, Surface plasmon, Enantioselective synthesis, Physics::Optics, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Molecular physics, 0103 physical sciences, Enantiomer, 010306 general physics, 0210 nano-technology, Chirality (chemistry), Plasmon, Circular polarization, ComputingMilieux_MISCELLANEOUS
Abstract

Efforts to improve enantioselective detection of chiral molecules have initiated great interest in the fields of chiral light and chiral plasmonics. While superchiral light had been reported as highly sensitive enantiomer probes, optical response of chiral molecules can also be boosted at the vicinity of chiral plasmonic structures due to enhanced light-molecule coupling. Here, we apply the fundamental description of chiral light, known as the chirality density and flux, to the local density of states (LDOS) which rules the processes of light-matter interactions. In spiral plasmonic structures, we experimentally demonstrate the mapping of far-field chiral LDOS properties by means of polarimetry analysis. We establish the link between the degree of circular polarization of freely propagating cavity modes and the chirality density and flux. Using the reciprocity theorem, we show that this measure can be used to probe to the near-field chirality associated with surface plasmon field. By mapping the chiral features of the LDOS, we report a helpful method for guiding the design of superchiral light and for the investigation of chiral light-matter interactions, opening doors to improved chiral molecular sensing.

Published
2018

38. Brownian motion in the pilot wave interpretation of de Broglie and relaxation to quantum equilibrium

Author

Drezet, A., Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), and Drezet, Aurelien

Subjects
[PHYS]Physics [physics], Quantum Physics, [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph], [PHYS.MPHY]Physics [physics]/Mathematical Physics [math-ph], FOS: Physical sciences, [PHYS.MPHY] Physics [physics]/Mathematical Physics [math-ph], Quantum Physics (quant-ph), [PHYS.QPHY] Physics [physics]/Quantum Physics [quant-ph], [PHYS] Physics [physics]
Abstract

The pilot wave interpretation proposed by de Broglie and later by Bohm contains not only a dynamical ontology but also relies on a statistical assumption known as quantum equilibrium. In this work which follows our recent article [1] we develop a Langevin force description of the relaxation process which leads to quantum equilibrium. Based on a application of the Caldera-Leggett model for a thermal bath we show how a Brownian motion leads naturally to quantum relaxation., to appear in Annales de la Fondation de Broglie (2018)

Published
2018

39. Thermoelectric Scanning Gate Interferometry on a Quantum Point Contact

Author

Ulf Gennser, Serge Huant, Pascal Simon, Marc Sanquer, Boris Brun, Vincent Bayot, Antonella Cavanna, Frederico Rodrigues Martins, Sébastien Faniel, Christian Ulysse, Benoît Hackens, Hermann Sellier, Abdelkarim Ouerghi, Dominique Mailly, Institut de la matière condensée et des nanosciences / Institute of Condensed Matter and Nanosciences (IMCN), Université Catholique de Louvain = Catholic University of Louvain (UCL), Centre de Nanosciences et de Nanotechnologies [Marcoussis] (C2N), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des Solides (LPS), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11), Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Laboratoire de Transport Electronique Quantique et Supraconductivité (LaTEQS), PHotonique, ELectronique et Ingénierie QuantiqueS (PHELIQS), Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Nano-Electronique Quantique et Spectroscopie (QuNES), Nano-Optique et Forces (NEEL - NOF), Nano-Electronique Quantique et Spectroscopie (NEEL - QuNES), C2N, CNRS - Université Paris-Sud, Université Paris-Saclay, and UCL - SST/IMCN/NAPS - Nanoscopic Physics

Subjects
Physics, Condensed Matter - Mesoscale and Nanoscale Physics, business.industry, Quantum point contact, General Physics and Astronomy, FOS: Physical sciences, Context (language use), 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Quantum technology, Interferometry, [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph], 0103 physical sciences, Thermoelectric effect, Bound state, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), Optoelectronics, 010306 general physics, 0210 nano-technology, business, Energy harvesting, Quantum, ComputingMilieux_MISCELLANEOUS, [PHYS.COND.CM-MSQHE]Physics [physics]/Condensed Matter [cond-mat]/Mesoscopic Systems and Quantum Hall Effect [cond-mat.mes-hall]
Abstract

We introduce a new scanning probe technique derived from scanning gate microscopy (SGM) in order to investigate thermoelectric transport in two-dimensional semiconductor devices. The thermoelectric scanning gate Microscopy (TSGM) consists in measuring the thermoelectric voltage induced by a temperature difference across a device, while scanning a polarized tip that locally changes the potential landscape. We apply this technique to perform interferometry of the thermoelectric transport in a quantum point contact (QPC). We observe an interference pattern both in SGM and TSGM images, and evidence large differences between the two signals in the low density regime of the QPC. In particular, a large phase jump appears in the interference fringes recorded by TSGM, which is not visible in SGM. We discuss this difference of sensitivity using a microscopic model of the experiment, based on the contribution from a resonant level inside or close to the QPC. This work demonstrates that combining scanning gate microscopy with thermoelectric measurements offers new information as compared to SGM, and provides a direct access to the derivative of the device transmission with respect to energy, both in amplitude and in phase., Accepted for publication in Physical Review Applied

Published
2018

40. Spin-orbital angular momentum tomography of a chiral plasmonic lens using leakage radiation microscopy

Author

Aline Pham, Airong Zhao, Aurélien Drezet, Nessim Jebali, Nano-Optique et Forces (NOF ), Institut Néel (NEEL), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])

Subjects
Physics, [PHYS]Physics [physics], Angular momentum, business.industry, Surface plasmon, Physics::Optics, 02 engineering and technology, 021001 nanoscience & nanotechnology, Polarization (waves), 01 natural sciences, Optical switch, Atomic and Molecular Physics, and Optics, 010309 optics, Optics, Optical tweezers, 0103 physical sciences, Microscopy, Plasmonic lens, 0210 nano-technology, business, Circular polarization, ComputingMilieux_MISCELLANEOUS
Abstract

Based on the spin-dependent directional coupling of surface plasmons (SPs) by ∧-shaped antennas, ring-shaped structures built with such antennas have potential applications for optical tweezers and optical switch technology. In this Letter, we introduce an optical method for realizing a complete polarization tomography of coupled SP fields by such a chiral-planar structure. We use a far-field optical approach, namely leakage radiation microscopy (LRM), to map the SPs propagation and polarization. Here, we fully analyze the polarization state of the generated SPs inside the vortex lens structure. In addition, we provide a theoretical model which agrees well with the experimental results.

Published
2018

41. Directional light beams by design from electrically driven elliptical slit antennas

Author

Gérald Dujardin, Serge Huant, Eric Le Moal, Elizabeth Boer-Duchemin, Aurélien Drezet, Shuiyan Cao, Jean-Paul Hugonin, Quanbo Jiang, Nanophysique et Surfaces, Institut des Sciences Moléculaires d'Orsay (ISMO), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Laboratoire Charles Fabry / Naphel, Laboratoire Charles Fabry (LCF), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), NOF - Nano-Optique et Forces, Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11), Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), and Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, General Physics and Astronomy, Physics::Optics, 02 engineering and technology, lcsh:Chemical technology, Ellipse, lcsh:Technology, 01 natural sciences, plasmonics, law.invention, Optics, Planar, law, elliptical antenna, 0103 physical sciences, optical antenna, Light beam, lcsh:TP1-1185, General Materials Science, Electrical and Electronic Engineering, lcsh:Science, 010306 general physics, Quantum tunnelling, Plasmon, inelastic electron tunneling, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], lcsh:T, business.industry, 021001 nanoscience & nanotechnology, Surface plasmon polariton, lcsh:QC1-999, surface plasmon polariton, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, scanning tunneling microscopy, lcsh:Q, Scanning tunneling microscope, 0210 nano-technology, business, lcsh:Physics, Beam (structure)
Abstract

International audience; We report on the low-energy, electrical generation of light beams in specific directions from planar elliptical microstructures. The emission direction of the beam is determined by the microstructure eccentricity. A very simple, broadband, optical antenna design is used, which consists of a single elliptical slit etched into a gold film. The light beam source is driven by an electrical nanosource of surface plasmon polaritons (SPP) that is located at one focus of the ellipse. In this study, SPPs are generated through inelastic electron tunneling between a gold surface and the tip of a scanning tunneling microscope.

Published
2018

42. Characterization of the second harmonics generation in plasmonic nanostructures

Author

Ethis De Corny, Maeliss, Bachelier, Guillaume, Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), ANT TWIN, Université Grenoble Alpes (France), Guillaume Bachelier, and Serge Huant

Subjects
[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics], [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Second harmonic generation SHG, Plasmonique, Génération de second harmonique, Near-field Measurements, Plasmonics, Champ proche optique
Abstract

Plasmonic nanostructures have the ability to support localised surface plasmon resonancescharacterized by a collective oscillation of the free electrons in metal. This phenomenon, knowto generate an intense local field, can be used to enhance nonlinear optical processes at thenanoscale level. In this thesis, we have investigated the second harmonic generation (SHG)process in aluminum and gold nanostructures. First, we have studied the origin of this nonlinearprocess and highlighted the major role played, in gold, by the bulk nonlocal contribution,originating from the field gradients inside the nanostructure volume. Then, we pointed out,by achieving a double resonance regime associated with a plasmonic mode matching at theexcitation and emission, the possibility to enhance significantly the harmonic response ofcompact aluminum nanoantennas. In order to increase even more the nonlinear intensity, anidea is to couple these nanostructures to a nonlinear nanocrystal to benficiate both from thefield enhancement provided by the metallic nanoantenna and from the nonlinearity of thenanocrystal. To optimise the harmonic intensity generated by these hybrid structures, havenanocrystals with a strong intrinsic nonlinearity is required. To this end, we have measuredthe harmonic response of single latanide iodate nanocrystals, in order to evaluate their abilityto integrate this type of structure. Moreover, we have implemented a near-field opticalmicroscope used to manipulate nancorystals in the vincinity of metallic nanostructures. Thisthesis, by bringing new elements to understand and optimise the SHG process in plasmonicnanostructures, provides new perspectives to elaborate efficient optical components tofrequency conversion at the nanoscale., Les nanostructures métalliques ont la capacité de supporter des résonances de plasmonsde surface localisés se caractérisant par une oscillation collective des électrons libres du métal.Ce phénomène, connu pour générer localement un champ électrique intense, peut notammentêtre exploité afin d’exalter les processus d’optique non-linéaire à l’échelle nanométrique. Aucours de cette thèse, nous nous sommes intéressés au processus de génération de second harmonique(SHG) de nanostructures en aluminium et en or. Tout d’abord, nous avons étudiél’origine du processus non-linéaire et mis en évidence le rôle important joué, dans l’or, parla contribution non-locale, issue des gradients de champ dans le volume de la nanostructure.Ensuite, nous avons montré, en associant un phénomène de double résonance et unaccord des modes plasmoniques à l’excitation et à l’émission, qu’il est possible d’exalter fortementla réponse harmonique d’une nanoantenne compacte en aluminium. Dans l’optiqued’obtenir une intensité non-linéaire encore plus importante, une stratégie est de coupler cesnanostructures à un nanocristal non-linéaire afin de bénéficier à la fois de la forte exaltationdu champ générée par le métal et de la non-linéarité du cristal. Afin d’optimiser l’intensitéharmonique générée par ces structures hybrides, disposer de nanocristaux possédant une fortenon-linéarité intrinsèque est nécessaire. C’est pourquoi, au cours de cette thèse, nous avonsmesuré la réponse harmonique de nanocristaux d’iodates de lantane isolés, afin d’estimer leurpotentiel pour intégrer ce type de structure. De plus, un microscope optique en champ prochea été mis en place sur le dispositif expérimental permettant la manipulation de nanocristauxà proximité de structures métalliques. Cette thèse, en apportant de nouveaux éléments pourcomprendre et optimiser le processus de SHG dans les nanostructures plasmoniques, offre denouvelles perspectives pour confectionner des composants optiques efficaces pour la conversionde fréquence à l’échelle nanométrique.

Published
2018

43. Optical fiber nano-tweezers, a complementary approach for micro- and nanoparticle trapping

Author

Jochen Fick, Nano-Optique et Forces (NOF ), Institut Néel (NEEL), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])

Subjects
Condensed Matter::Quantum Gases, [PHYS]Physics [physics], Materials science, Optical fiber, business.industry, Physics::Optics, Near and far field, 02 engineering and technology, Trapping, Maxwell stress tensor, 021001 nanoscience & nanotechnology, 01 natural sciences, law.invention, 010309 optics, Optical tweezers, law, 0103 physical sciences, Tweezers, Optoelectronics, Nanorod, Fiber, 0210 nano-technology, business
Abstract

We report stable and reproducible trapping of different micro and nanoparticles using a far field dual fiber tip optical tweezers. The tweezers properties are analyzed by studying the trapped particles residual Brownian motion. The trapping potential is harmonic and the trapping forces in transverse direction are typically three times larger with respect to axial direction. Interference fringe trapping is observed for 300 nm YAG particles. Depending on their length, NaYF4 nanorods are trapped in single or dual fiber tip configurations. Longest rods could be trapped with one single fiber tip at 5 μm away from tip. The experimental results are discussed using numerical simulations based on exact Maxwell Stress Tensor approach.

Published
2018

44. Optically-Triggered Nanoscale Memory Effect in a Hybrid Plasmonic-Phase Changing Nanostructure

Author

Stefan A. Maier, Filip Ligmajer, Yannick Sonnefraud, Kannatassen Appavoo, Richard F. Haglund, Dangyuan Lei, Quantum Optics and Laser Science, Blackett Laboratory, Blackett Laboratory, Imperial College London-Imperial College London, Brookhaven National Laboratory [Upton, NY] (BNL), U.S. Department of Energy [Washington] (DOE)-UT-Battelle, LLC-Stony Brook University [SUNY] (SBU), State University of New York (SUNY)-State University of New York (SUNY), Nano-Optique et Forces (NOF), Institut Néel (NEEL), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), and Vanderbilt University [Nashville]

Subjects
phase transformation, Materials science, Nanostructure, Phase (waves), Physics::Optics, Nanotechnology, 02 engineering and technology, 01 natural sciences, 010309 optics, 0103 physical sciences, metal nanoparticles, Electrical and Electronic Engineering, Surface plasmon resonance, vanadium dioxides, ComputingMilieux_MISCELLANEOUS, Plasmon, [PHYS]Physics [physics], surface plasmons, Surface plasmon, Heterojunction, 021001 nanoscience & nanotechnology, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Coupling (electronics), plasmonic memory effect, Condensed Matter::Strongly Correlated Electrons, 0210 nano-technology, Biotechnology, Localized surface plasmon
Abstract

Nanoscale devices, such as all-optical modulators and electro-optical transducers, can be implemented in heterostructures that integrate plasmonic nanostructures with functional active materials. Here we demonstrate all-optical control of a nanoscale memory effect in such a heterostructure by coupling the localized surface plasmon resonance (LSPR) of gold nanodisk arrays to a phase-changing material (PCM), vanadium dioxide (VO2). By latching the VO2 in a distinct correlated metallic state during the insulator-to-metal transition (IMT), while concurrently exciting the hybrid nanostructure with one or more ultraviolet optical pulses, the entire phase space of this correlated state can be accessed optically to modulate the plasmon response. We find that the LSPR modulation depends strongly but linearly on the initial latched state, suggesting that the memory effect encoded in the plasmon resonance wavelength is linked to the strongly correlated electron states of the VO2. The continuous, linear variation of ...

Published
2015

45. Manifestation of Planar and Bulk Chirality Mixture in Plasmonic Λ-Shaped Nanostructures Caused by Symmetry Breaking Defects

Author

Aurélien Drezet, Airong Zhao, Aline Pham, Quanbo Jiang, Joel Bellessa, Cyriaque Genet, Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut Lumière Matière [Villeurbanne] (ILM), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Institut de Science et d'ingénierie supramoléculaires (ISIS), Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Matériaux et nanosciences d'Alsace (FMNGE), and Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)

Subjects
Physics, [PHYS]Physics [physics], Birefringence, Condensed matter physics, Metamaterial, 02 engineering and technology, Planar chirality, Dichroism, 021001 nanoscience & nanotechnology, Polarization (waves), 01 natural sciences, Atomic and Molecular Physics, and Optics, Symmetry (physics), Electronic, Optical and Magnetic Materials, 0103 physical sciences, Symmetry breaking, Electrical and Electronic Engineering, 010306 general physics, 0210 nano-technology, Chirality (chemistry), ComputingMilieux_MISCELLANEOUS, Biotechnology
Abstract

We report on the coexistence of planar and bulk chiral effects in plasmonic Λ-shaped nanostructure arrays arising from symmetry breaking defects. The manifestation of bi- (2D) and three-dimensional (3D) chiral effects are revealed by means of polarization tomography and confirmed by symmetry considerations of the experimental Jones matrix. Notably, investigating the antisymmetric and symmetric parts of the Jones matrix points out the contribution of 2D and 3D chirality in the polarization conversion induced by the system whose eigenpolarizations attest to the coexistence of planar and bulk chirality. Furthermore, we introduce a generalization of the microscopic model of Kuhn, yielding to a physical picture of the origins of the observed planar chirality, circular birefringence, and dichroism, theoretically prohibited in symmetric Λ-shaped nanostructures.

Published
2017

46. Perception et immersion interactive dans le Nanomonde : Sa mise en scène grâce à la réalité virtuelle et aux interfaces haptiques

Author

Marchi, Florence, Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), and Marchi, Florence

Subjects
[SHS.MUSIQ] Humanities and Social Sciences/Musicology and performing arts, [SPI]Engineering Sciences [physics], [SHS.MUSIQ]Humanities and Social Sciences/Musicology and performing arts, [SPI] Engineering Sciences [physics]
Abstract

International audience; Contexte et introduction Le terme « Nanomonde » est récent, il désigne la partie de notre monde qui se situe à des distances et tailles très petites par rapport à l'échelle macroscopique dans laquelle les humains évoluent quotidiennement. Pour illustrer ce que représente un nanomètre, il faut s'imager un fil dont le diamètre serait presque cent mille fois (100 000) plus petit que celui d'un cheveu... On pourrait se dire que ce monde est inaccessible et nous touche peu…. Erreur ! Dans cet univers se déroulent des processus et une vie qui sont soit devenus quasi-indispensables à nos activités modernes soit qui le sont depuis toujours… Depuis une dizaine d'années les écrans tactiles interactifs de haut niveau dont les « smart phones » et les tablettes sont les figures de proue, ont trouvé une place de choix dans notre quotidien. Chaque année, ces équipements mobiles ainsi que les ordinateurs présentent des capacités de stockage des données en hausse, d'accès à l'information et des applications toujours plus performants. Par exemple, l'appareil photo et webcam intégrés aux ordinateurs, tablettes et « smart phone » produisent des images de très bonne qualité en haute définition. Cette course aux toujours « plus » est permise par la miniaturisation des circuits électroniques et opto-électromécaniques et plus particulièrement de leurs éléments de base à savoir le transistor [1] et les systèmes mécaniques (structure déformable et/ou mobile) mieux connus sous l'acronyme MEMS et NEMS i [2]. Leur rôle respectif est pour le transistor de coder et stocker l'information (images et sons) sous la forme de « 0 » ou de « 1 » tandis que les systèmes électro-mécaniques détectent les déplacements et l'orientation de l'appareil, ainsi par exemple la tablette affiche verticalement ou horizontalement le contenu de l'écran en fonction de l'angle que vous lui donnez. La réduction dimensionnelle de ces briques de base densifie leur présence : leur population double sur une surface constante tous les 18 mois environ comme le prédit la célèbre 'loi' de Moore [3]. Cette course à la miniaturisation implique qu'à présent les dimensions de ces briques de base sont nanométriques ce qui les rend sensibles aux phénomènes physicochimiques et quantiques prédominant à cette échelle, perturbant ainsi leur fonctionnement classique. Il est donc indispensable d'étudier et comprendre ces phénomènes afin de pouvoir soit les minimiser soit les mettre à profit pour élaborer de nouveaux circuits. En parallèle, la nature n'a pas attendu les innovations technologiques humaines pour peupler le Nanomonde, la vie a même commencé à cette échelle ! En effet, des virus aux cellules en passant par les bactéries, tous ces systèmes biologiques sont issus de la même brique élémentaire l'ADN ii (ou ARN iii) et leur taille est pleinement ou partiellement nanoscopique (par exemple le diamètre i MEMS, NEMS : Micro/Nano Electro-Mechanical System ii ADN : acide désoxyribonucléique iii ARN : acide ribonucléique

Published
2017

47. Equivalence between the Hamiltonian and Langevin noise descriptions of plasmon polaritons in a dispersive and lossy inhomogeneous medium

Author

Aurélien Drezet, Nano-Optique et Forces (NOF ), Institut Néel (NEEL), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])

Subjects
Physics, [PHYS]Physics [physics], Quantum Physics, Photon, FOS: Physical sciences, Observable, 02 engineering and technology, Lossy compression, 021001 nanoscience & nanotechnology, 01 natural sciences, Casimir effect, symbols.namesake, Quantum electrodynamics, Quantum mechanics, 0103 physical sciences, Polariton, symbols, Quantum Physics (quant-ph), 010306 general physics, 0210 nano-technology, Hamiltonian (quantum mechanics), Quantum, Plasmon, ComputingMilieux_MISCELLANEOUS
Abstract

We demonstrate the fundamental links existing between two different descriptions of quantum electrodynamics in inhomogeneous, lossy and dispersive dielectric media which are based either on the Huttner-Barnett formalism for polaritons [B. Huttner and S. M. Barnett, Phys.Rev. A 46, 4306 (1992)] or the Langevin noise approach using fluctuating currents [T. Gruner and D.-G. Welsch, Phys.Rev.A 53, 1818 (1996)]. In this work we demonstrate the practical equivalence of the two descriptions by introducing the concept of effective photon state associated with some specific noise current distribution. We study the impact of these results on the calculation and interpretation of quantum observables such as fluctuations, correlations, and Casimir forces., Submitted for publication (2017)

Published
2017

48. Strongly directional scattering from dielectric nanowires

Author

Thierry Baron, Arnaud Arbouet, Frank Fournel, Peter R. Wiecha, Gérard Colas des Francs, Aurélien Cuche, Christian Girard, Guilhem Larrieu, Vincent Paillard, Aurélie Lecestre, Vincent Larrey, Nano-Optique et Nanomatériaux pour l'optique (CEMES-NeO), Centre d'élaboration de matériaux et d'études structurales (CEMES), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie de Toulouse (ICT-FR 2599), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut de Chimie du CNRS (INC)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse III - Paul Sabatier (UT3), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Laboratoire Interdisciplinaire Carnot de Bourgogne [Dijon] (LICB), Université de Bourgogne (UB)-Université de Technologie de Belfort-Montbeliard (UTBM)-Centre National de la Recherche Scientifique (CNRS), Service Techniques et Équipements Appliqués à la Microélectronique (LAAS-TEAM), Laboratoire d'analyse et d'architecture des systèmes (LAAS), Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Équipe Matériaux et Procédés pour la Nanoélectronique (LAAS-MPN), Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire des technologies de la microélectronique (LTM ), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Centre d'élaboration de matériaux et d'études structurales ( CEMES ), Institut National des Sciences Appliquées - Toulouse ( INSA Toulouse ), Institut National des Sciences Appliquées ( INSA ) -Institut National des Sciences Appliquées ( INSA ) -Université Paul Sabatier - Toulouse 3 ( UPS ) -Centre National de la Recherche Scientifique ( CNRS ), Nano-Optique et Nanomatériaux pour l'optique ( CEMES-NeO ), Institut National des Sciences Appliquées ( INSA ) -Institut National des Sciences Appliquées ( INSA ) -Université Paul Sabatier - Toulouse 3 ( UPS ) -Centre National de la Recherche Scientifique ( CNRS ) -Institut National des Sciences Appliquées - Toulouse ( INSA Toulouse ), Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Service Techniques et Équipements Appliqués à la Microélectronique ( LAAS-TEAM ), Laboratoire d'analyse et d'architecture des systèmes [Toulouse] ( LAAS ), Institut National Polytechnique [Toulouse] ( INP ) -Institut National des Sciences Appliquées - Toulouse ( INSA Toulouse ), Institut National des Sciences Appliquées ( INSA ) -Institut National des Sciences Appliquées ( INSA ) -Université Paul Sabatier - Toulouse 3 ( UPS ) -Centre National de la Recherche Scientifique ( CNRS ) -Institut National Polytechnique [Toulouse] ( INP ) -Institut National des Sciences Appliquées - Toulouse ( INSA Toulouse ), Équipe Matériaux et Procédés pour la Nanoélectronique ( LAAS-MPN ), Laboratoire d'Electronique et des Technologies de l'Information ( CEA-LETI ), Université Grenoble Alpes [Saint Martin d'Hères]-Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ), Laboratoire des technologies de la microélectronique ( LTM ), Université Joseph Fourier - Grenoble 1 ( UJF ) -Centre National de la Recherche Scientifique ( CNRS ), Labau, Isabelle, Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut de Chimie de Toulouse (ICT), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Nano-Optique et Forces (NEEL - NOF), Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB), Université de Technologie de Belfort-Montbeliard (UTBM)-Université de Bourgogne (UB)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), NOF - Nano-Optique et Forces, Institut Néel ( NEEL ), Centre National de la Recherche Scientifique ( CNRS ) -Université Grenoble Alpes [Saint Martin d'Hères]-Centre National de la Recherche Scientifique ( CNRS ) -Université Grenoble Alpes [Saint Martin d'Hères], Laboratoire Interdisciplinaire Carnot de Bourgogne [Dijon] ( LICB ), Université de Technologie de Belfort-Montbeliard ( UTBM ) -Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), and Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Université Grenoble Alpes [Saint Martin d'Hères]

Subjects
Nanowire, Nanoparticle, FOS: Physical sciences, Physics::Optics, 02 engineering and technology, Dielectric, 01 natural sciences, [PHYS] Physics [physics], 010309 optics, 0103 physical sciences, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), Electrical and Electronic Engineering, ComputingMilieux_MISCELLANEOUS, Physics, [PHYS]Physics [physics], [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], [ PHYS ] Physics [physics], [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics], Condensed matter physics, Condensed Matter - Mesoscale and Nanoscale Physics, Scattering, 021001 nanoscience & nanotechnology, Polarization (waves), Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Transverse plane, 0210 nano-technology, Excitation, Biotechnology, Visible spectrum
Abstract

It has been experimentally demonstrated only recently that a simultaneous excitation of interfering electric and magnetic resonances can lead to uni-directional scattering of visible light in zero-dimensional dielectric nanoparticles. We show both theoretically and experimentally, that strongly anisotropic scattering also occurs in individual dielectric nanowires. The effect occurs even under either pure transverse electric or pure transverse magnetic polarized normal illumination. This allows for instance to toggle the scattering direction by a simple rotation of the incident polarization. Finally, we demonstrate that directional scattering is not limited to cylindrical cross-sections, but can be further tailored by varying the shape of the nanowires., Comment: 12 pages, 6 figures + supporting informations of 12 pages, 19 figures

Published
2017

49. Dispersive heterodyne probing method for laser frequency stabilization based on spectral hole burning in rare-earth doped crystals

Author

Gobron, O., Jung, K., Galland, N., Predehl, K., Le Targat, R., Ferrier, A., Goldner, P., Seidelin, S., Le Coq, Y., Laboratoire national de métrologie et d'essais - Systèmes de Référence Temps-Espace (LNE - SYRTE), Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL), Publica, and Nano-Optique et Forces (NEEL - NOF)

Subjects
quantum technologies, [PHYS]Physics [physics], metrology, rare earth, Physics::Optics, nanoqtech, [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat], laser stabilization
Abstract

International audience; Frequency-locking a laser to a spectral hole in rare-earth doped crystals at cryogenic temperature has been shown to be a promising alternative to the use of high finesse Fabry-Perot cavities when seeking a very high short term stability laser (M. J. Thorpe et al., Nature Photonics 5, 688 (2011)). We demonstrate here a novel technique for achieving such stabilization, based on generating a heterodyne beat-note between a master laser and a slave laser whose dephasing caused by propagation near a spectral hole generate the error signal of the frequency lock. The master laser is far detuned from the center of the inhomogeneous absorption profile, and therefore exhibits only limited interaction with the crystal despite a potentially high optical power. The demodulation and frequency corrections are generated digitally with a hardware and software implementation based on a field-programmable gate array and a Software Defined Radio platform, making it straightforward to address several frequency channels (spectral holes) in parallel.

Published
2017

50. Deep Seated Negative Axicon in Selective Optical Fiber Tip and Collimated Bessel Beam

Author

Umesh Tiwari, Jochen Fick, Kaushal Vairagi, Sambhav Paul, Ravindra Kumar Sinha, Dharmadas Kumbhakar, Rashmi A. Minz, Sarabjeet Kaur, Samir K. Mondal, Council of Scientific and Industrial Research [India] (CSIR), Nano-Optique et Forces (NOF ), Institut Néel (NEEL), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])

Subjects
[PHYS]Physics [physics], Optical fiber, Materials science, business.industry, Polarization-maintaining optical fiber, 02 engineering and technology, Graded-index fiber, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention, Numerical aperture, Axicon, Core (optical fiber), 020210 optoelectronics & photonics, Optics, law, 0202 electrical engineering, electronic engineering, information engineering, Bessel beam, Electrical and Electronic Engineering, business, ComputingMilieux_MISCELLANEOUS, Photonic-crystal fiber
Abstract

In this letter, we have demonstrated the fabrication of a deep seated negative axicon (DSNA) with micrometer dimensions inside a selective optical fiber tip for the generation of optical Bessel beams (BBs). The DSNA is prepared by simple chemical etching of the fiber tip in hydrofluoric acid under the influence of capillary action. The selective optical fiber has a high numerical aperture of 0.3 and a small core diameter of about $4~\mu \text{m}$ . The higher etching rate of the optical fiber core contributes to fabricate the DSNA, which converts Gaussian-like beam into BB. The central spot of the BB shows quasi-invariant spot-size over the propagation distance of sub-millimeter and centimeter range. The self-protected DSNA can be useful for scanning optical fiber endoscopy applications as well as can be integrated into systems, where non-diffracting BB is preferred.

Published
2017

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