10 results on '"Emeline D S Nysten"'
Search Results
2. Quantum Control of Optically Active Artificial Atoms With Surface Acoustic Waves
- Author
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Michael Choquer, Matthias Weis, Emeline D. S. Nysten, Michelle Lienhart, PaweL Machnikowski, Daniel Wigger, Hubert J. Krenner, and Galan Moody
- Subjects
Quantum dots (QDs) ,quantum networking and communications ,surface acoustic waves (SAWs) ,Atomic physics. Constitution and properties of matter ,QC170-197 ,Materials of engineering and construction. Mechanics of materials ,TA401-492 - Abstract
Surface acoustic waves (SAWs) are a versatile tool for realizing coherent quantum interfaces between various solid-state qubits spanning microwave to optical frequencies. Through strain, electric, or magnetic fields associated with acoustic waves, qubit states can be controlled and measured with exquisite precision for applications in quantum information processing, memory, transduction, and sensing. In this review, we discuss progress toward quantum control using surface acoustic waves coupled to optically active artificial atoms, including semiconductor quantum dots (QDs), optically addressable solid-state spins, and quantum emitters in van der Waals materials. We outline the device, material, and theoretical considerations for realizing interactions with surface acoustic waves in the quantum regime, summarize the state of the art in coupling surface acoustic waves to artificial atoms, and provide insight into the current trends and trajectory of the field.
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- 2022
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3. Integrated quantum dot optomechanics
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Xueyong Yuan, Anja Vogele, Saimon Filipe Covre da Silva, Benjamin Mayer, Armando Rastelli, Emeline D. S. Nysten, Matthias Weiß, Maximilian M. Sonner, and Hubert J. Krenner
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Physics ,Quantum dot ,business.industry ,Optoelectronics ,business ,Optomechanics - Published
- 2020
4. Integration of Single Quantum Dots in Suspended Phononic Waveguides
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Matthias Weiß, Hubert J. Krenner, Xueyong Yuan, Saimon Filipe Covre da Silva, Maximilian M. Sonner, Armando Rastelli, Emeline D. S. Nysten, and Anja Vogele
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Materials science ,business.industry ,Physics::Optics ,Heterojunction ,Acoustic wave ,law.invention ,symbols.namesake ,law ,Quantum dot ,Excited state ,symbols ,Optoelectronics ,Phase velocity ,Rayleigh scattering ,business ,Waveguide ,Common emitter - Abstract
In fundamental research, surface acoustic waves (SAWs), nanoscale earthquakes on a chip are an extremely versatile tool to dynamically probe and manipulate charge and spin excitations condensed matter systems. When excited on piezoelectric materials both the oscillating mechanical stress of the SAW and its accompanying electric fields can be harnessed to establish strong interactions between single quantum emitters and sound on the nanoscale [1–4]. Here, we report on the integration of single quantum emitters in suspended phononic waveguides. Figure 1 (a) shows an electron micrograph of a 50 μm long and 2 μm wide suspended beam patterned on an approximately 150 nm thick (Al)GaAs heterostructure containing a single layer of GaAs quantum dots (QDs). In our experiment a Rayleigh SAW is excited by a multiharmonic frequency-chirped transducer [5] excited on the unpatterned region and coupled into the suspended beam where it propagates as a Lamb mode of identical frequency [6]. Figure 1 (b) and (c) compare the optomechanical response of a single QD in the unpatterend region and in the suspended beam, respectively. Clearly, the optomechanical of the quantum emitter inside the suspended phononic waveguide is enhanced by a factor of 3.5, compared to that of the emitter strained by the Rayleigh SAW. This finding may arise from an enhancement of the optomechanical coupling between the emitter and the elastic wave in the one-dimensional phononic waveguide. Employing phase resolved spectroscopy on an ensemble of quantum emitters we can unambiguously show, that the observed optomechanical response arises from the coupling between the low phase velocity, anti-symmetric (flexural) Lamb-Mode and the QD. Moreover, our fabricated phononic waveguides exhibit low propagation losses.
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- 2019
5. Quantum dot optomechanics in suspended nanophononic strings
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Benjamin Mayer, Saimon Filipe Covre da Silva, Armando Rastelli, Xueyong Yuan, Maximilian M. Sonner, Anja Vogele, Hubert J. Krenner, Emeline D. S. Nysten, and Matthias Weiß
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Nuclear and High Energy Physics ,Physics::Optics ,FOS: Physical sciences ,02 engineering and technology ,Applied Physics (physics.app-ph) ,01 natural sciences ,Molecular physics ,String (physics) ,symbols.namesake ,Lamb waves ,0103 physical sciences ,Mesoscale and Nanoscale Physics (cond-mat.mes-hall) ,ddc:530 ,Electrical and Electronic Engineering ,Rayleigh scattering ,010306 general physics ,Mathematical Physics ,Optomechanics ,Physics ,Quantum Physics ,Condensed Matter - Mesoscale and Nanoscale Physics ,Surface acoustic wave ,Statistical and Nonlinear Physics ,Acoustic wave ,Physics - Applied Physics ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,Electronic, Optical and Magnetic Materials ,Computational Theory and Mathematics ,Quantum dot ,symbols ,0210 nano-technology ,Mechanical wave ,Quantum Physics (quant-ph) ,Physics - Optics ,Optics (physics.optics) - Abstract
The optomechanical coupling of quantum dots and flexural mechanical modes is studied in suspended nanophononic strings. The investigated devices are designed and monolithically fabricated on an (Al)GaAs heterostructure. Radio frequency elastic waves with frequencies ranging between $f$=250 MHz to 400 MHz are generated as Rayleigh surface acoustic waves on the unpatterned substrate and injected as Lamb waves in the nanophononic string. Quantum dots inside the nanophononic string exhibit a 15-fold enhanced optomechanical modulation compared to those dynamically strained by the Rayleigh surface acoustic wave. Detailed finite element simulations of the phononic mode spectrum of the nanophononic string confirm, that the observed modulation arises from valence band deformation potential coupling via shear strain. The corresponding optomechanical coupling parameter is quantified to $0.15 \mathrm{meV nm^{-1}}$. This value exceeds that reported for vibrating nanorods by approximately one order of magnitude at 100 times higher frequencies. Using this value, a derive vertical displacements in the range of 10 nm is deduced from the experimentally observed modulation. The results represent an important step towards the creation of large scale optomechanical circuits interfacing single optically active quantum dots with optical and mechanical waves., Comment: Submitted manuscript
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- 2019
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6. A hybrid (Al)GaAs-LiNbO3surface acoustic wave resonator for cavity quantum dot optomechanics
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Emeline D. S. Nysten, Armando Rastelli, and Hubert J. Krenner
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Materials science ,Quantum decoherence ,Surface acoustic wave resonators ,Physics and Astronomy (miscellaneous) ,FOS: Physical sciences ,Applied Physics (physics.app-ph) ,02 engineering and technology ,7. Clean energy ,01 natural sciences ,Resonator ,Quality (physics) ,Mesoscale and Nanoscale Physics (cond-mat.mes-hall) ,0103 physical sciences ,ddc:530 ,Optomechanics ,010302 applied physics ,Coupling ,Condensed Matter - Mesoscale and Nanoscale Physics ,business.industry ,Heterojunction ,Physics - Applied Physics ,Condensed Matter::Mesoscopic Systems and Quantum Hall Effect ,021001 nanoscience & nanotechnology ,Quantum dot ,Optoelectronics ,0210 nano-technology ,business ,Optics (physics.optics) ,Physics - Optics - Abstract
A hybrid device comprising a (Al)GaAs quantum dot heterostructure and a LiNbO$_3$ surface acoustic wave resonator is fabricated by heterointegration. High acoustic quality factors $Q>4000$ are demonstrated for an operation frequency $f\approx 300$ MHz. The measured large quality factor-frequency products $Q\times f>10^{12}$ ensures the suppression of decoherence due to thermal noise for temperatures exceeding $T>50\,\mathrm{K}$. Frequency and position dependent optomechanical coupling of single quantum dots and the resonator modes is observed., Accepted manuscript
- Published
- 2020
7. Annealing effects on the magnetic properties of highly-packed vertically-aligned nickel nanotubes
- Author
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Juan Manuel Martínez-Huerta, Vlad-Andrei Antohe, Emeline D. S. Nysten, Pedro Sá, Luc Piraux, and UCL - SST/IMCN/BSMA - Bio and soft matter
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Nanostructure ,Fabrication ,Materials science ,Annealing (metallurgy) ,General Chemical Engineering ,Non-blocking I/O ,chemistry.chemical_element ,Nanotechnology ,Heterojunction ,02 engineering and technology ,General Chemistry ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,0104 chemical sciences ,Nickel ,Ferromagnetism ,chemistry ,Antiferromagnetism ,Condensed Matter::Strongly Correlated Electrons ,ddc:530 ,0210 nano-technology - Abstract
We reported an efficient way of preparing large and dense ferromagnetic arrays of vertically-aligned Ni nanotubes (NTs). The synthesis method allowed then for a direct, effective and controllable thermal conversion of the as-prepared Ni NTs into heterostructured Ni/NiO NTs, without compromising the nanostructures' verticality to the substrate and their initial tubular integrity. Next, we demonstrated the ability to tune the dipolar interaction field (DIF) in this array of one-dimensional (1D) Ni/NiO heterostructures, just by slightly changing the thickness of the antiferromagnetic NiO layer. Furthermore, the proposed fabrication method assures full compatibility with the standard Si processing, providing thus a direct pathway towards large-scale integrability and manufacturing of a new generation of magnetic devices relying on dense arrays of vertical 1D magnetic nanostructures.
- Published
- 2018
8. Multi-harmonic quantum dot optomechanics in fused LiNbO3–(Al)GaAs hybrids
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Yongheng Huo, Armando Rastelli, Hailong Yu, Emeline D. S. Nysten, Hubert J. Krenner, and Guo Feng Song
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Materials science ,Acoustics and Ultrasonics ,Physics::Optics ,FOS: Physical sciences ,Applied Physics (physics.app-ph) ,02 engineering and technology ,01 natural sciences ,7. Clean energy ,Mesoscale and Nanoscale Physics (cond-mat.mes-hall) ,0103 physical sciences ,010306 general physics ,Optomechanics ,Quantum Physics ,Condensed Matter - Mesoscale and Nanoscale Physics ,business.industry ,Physics - Applied Physics ,Condensed Matter::Mesoscopic Systems and Quantum Hall Effect ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,Quantum dot ,Harmonic ,Optoelectronics ,Quantum Physics (quant-ph) ,0210 nano-technology ,business ,Physics - Optics ,Optics (physics.optics) - Abstract
We fabricated an acousto-optic semiconductor hybrid device for strong optomechanical coupling of individual quantum emitters and a surface acoustic wave. Our device comprises a surface acoustic wave chip made from highly piezoelectric LiNbO$_3$ and a GaAs-based semiconductor membrane with an embedded layer of quantum dots. Employing multi-harmonic transducers, we generated sound waves on LiNbO$_3$ over a wide range of radio frequencies. We monitored their coupling to and propagation across the semiconductor membrane both in the electrical and optical domain. We demonstrate enhanced optomechanical tuning of the embedded quantum dots with increasing frequencies. This effect was verified by finite element modelling of our device geometry and attributed to an increased localization of the acoustic field within the semiconductor membrane. For moderately high acoustic frequencies, our simulations predict strong optomechanical coupling making our hybrid device ideally suited for applications in semiconductor based quantum acoustics., Comment: revised manuscript. unit conversion error fixed
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- 2017
9. The 2019 surface acoustic waves roadmap.
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Per Delsing, Andrew N Cleland, Martin J A Schuetz, Johannes Knörzer, Géza Giedke, J Ignacio Cirac, Kartik Srinivasan, Marcelo Wu, Krishna Coimbatore Balram, Christopher Bäuerle, Tristan Meunier, Christopher J B Ford, Paulo V Santos, Edgar Cerda-Méndez, Hailin Wang, Hubert J Krenner, Emeline D S Nysten, Matthias Weiß, Geoff R Nash, and Laura Thevenard
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ACOUSTIC surface waves ,QUASIPARTICLES ,SOUND waves ,CONDENSED matter ,LIFE sciences ,SURFACE fault ruptures - Abstract
Today, surface acoustic waves (SAWs) and bulk acoustic waves are already two of the very few phononic technologies of industrial relevance and can been found in a myriad of devices employing these nanoscale earthquakes on a chip. Acoustic radio frequency filters, for instance, are integral parts of wireless devices. SAWs in particular find applications in life sciences and microfluidics for sensing and mixing of tiny amounts of liquids. In addition to this continuously growing number of applications, SAWs are ideally suited to probe and control elementary excitations in condensed matter at the limit of single quantum excitations. Even collective excitations, classical or quantum are nowadays coherently interfaced by SAWs. This wide, highly diverse, interdisciplinary and continuously expanding spectrum literally unites advanced sensing and manipulation applications. Remarkably, SAW technology is inherently multiscale and spans from single atomic or nanoscopic units up even to the millimeter scale. The aim of this Roadmap is to present a snapshot of the present state of surface acoustic wave science and technology in 2019 and provide an opinion on the challenges and opportunities that the future holds from a group of renown experts, covering the interdisciplinary key areas, ranging from fundamental quantum effects to practical applications of acoustic devices in life science. [ABSTRACT FROM AUTHOR]
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- 2019
- Full Text
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10. Multi-harmonic quantum dot optomechanics in fused LiNbO3–(Al)GaAs hybrids.
- Author
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Emeline D S Nysten, Yong Heng Huo, Hailong Yu, Guo Feng Song, Armando Rastelli, and Hubert J Krenner
- Subjects
- *
SOUND waves , *QUANTUM dots - Abstract
We fabricated an acousto-optic semiconductor hybrid device for strong optomechanical coupling of individual quantum emitters and a surface acoustic wave. Our device comprises of a surface acoustic wave chip made from highly piezoelectric LiNbO3 and a GaAs-based semiconductor membrane with an embedded layer of quantum dots. Employing multi-harmonic transducers, we generated sound waves on LiNbO3 over a wide range of radio frequencies. We monitored their coupling to and propagation across the semiconductor membrane, both in the electrical and optical domain. We demonstrate the enhanced optomechanical tuning of the embedded quantum dots with increasing frequencies. This effect was verified by finite element modelling of our device geometry and attributed to an increased localization of the acoustic field within the semiconductor membrane. For moderately high acoustic frequencies, our simulations predict strong optomechanical coupling, making our hybrid device ideally suited for applications in semiconductor based quantum acoustics. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
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