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Your search keyword '"Inbal Friedler"' showing total 5 results
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5 results on '"Inbal Friedler"'

1. Solid-state single photon sources: the nanowire antenna

Author

Christophe Sauvan, Jean-Michel Gérard, Inbal Friedler, Philippe Lalanne, Jean-Paul Hugonin, Julien Claudon, Laboratoire Charles Fabry de l'Institut d'Optique / Naphel, Laboratoire Charles Fabry de l'Institut d'Optique (LCFIO), 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), Nanophysique et Semiconducteurs (NPSC), 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), ANR-06-NSCI-0003,NanoEPR,Deterministic single quantum dot Nano-sources of Entangled Photon paiRs (NAnoEPR)(2006), and European Project: 34352,QPHOTON

Subjects
Materials science, Photon, Nanowire, 02 engineering and technology, Purcell effect, 7. Clean energy, 01 natural sciences, Optics, 0103 physical sciences, Quantum Dots, Nanotechnology, Spontaneous emission, Particle Size, 010306 general physics, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, Lasers, Equipment Design, 021001 nanoscience & nanotechnology, Atomic and Molecular Physics, and Optics, Numerical aperture, Nanostructures, Equipment Failure Analysis, Refractometry, Semiconductor, Semiconductors, Quantum dot, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Optoelectronics, Antenna (radio), 0210 nano-technology, business
Abstract

We design several single-photon-sources based on the emission of a quantum dot embedded in a semiconductor (GaAs) nanowire. Through various taper designs, we engineer the nanowire ends to realize efficient metallic-dielectric mirrors and to reduce the divergence of the far-field radiation diagram. Using fully-vectorial calculations and a comprehensive Fabry-Perot model, we show that various realistic nanowire geometries may act as nanoantennas (volume of approximately 0.05 lambda(3)) that assist funnelling the emitted photons into a single monomode channel. Typically, very high extraction efficiencies above 90% are predicted for a collection optics with a numerical aperture NA=0.85. In addition, since no frequency-selective effect is used in our design, this large efficiency is achieved over a remarkably broad spectral range, Deltalambda=70 nm at lambda=950 nm.

Published
2009

2. Giant nonlinearity and entanglement of single photons in photonic bandgap structures

Author

Gershon Kurizki, Inbal Friedler, and David Petrosyan

Subjects
Physics, Quantum Physics, Photon, Dopant, business.industry, General Physics and Astronomy, Physics::Optics, FOS: Physical sciences, Quantum entanglement, Nonlinear system, Modulation, Polariton, Optoelectronics, Photonics, business, Quantum Physics (quant-ph), Doppler broadening
Abstract

Giantly enhanced cross-phase modulation with suppressed spectral broadening is predicted between optically-induced dark-state polaritons whose propagation is strongly affected by photonic bandgaps of spatially periodic media with multilevel dopants. This mechanism is shown to be capable of fully entangling two single-photon pulses with high fidelity., Comment: 7 pages, 1 figure

Published
2004
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3. Quantifying the radiation efficiency of nano antennas

Author

Amir Boag, Jacob Scheuer, Yuval Yifat, Inbal Friedler, Michal Eitan, Zeev Iluz, and Yael Hanein

Subjects
Materials science, Physics and Astronomy (miscellaneous), Directional antenna, business.industry, Scattering, Bandwidth (signal processing), Radiation, Finite element method, Antenna efficiency, Optics, Nano, Optoelectronics, business, Spectroscopy, Computer Science::Information Theory
Abstract

The radiation efficiency of nano antennas is a critical parameter determining their suitability for various applications. To that end, the radiation efficiency of a single antenna is directly quantified using far-field measurements of the reflectance of an array comprising identical nano-antennas. Excellent agreement in terms of resonance frequencies, optical bandwidth, and scattering efficiency is found between the results of experimental measurements and finite element-based numerical analysis of scattering from Au nano-antenna arrays. Extremely high overall radiation efficiencies, exceeding 82%, are obtained. The high efficiency can facilitate the employment of such nano-antennas for applications in imaging, spectroscopy, and solar energy harvesting.

Published
2012
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4. Efficient photonic mirrors for semiconductor nanowires

Author

Julien Claudon, Isabelle Robert-Philip, Philippe Lalanne, Alexios Beveratos, Jean-Paul Hugonin, Jean-Michel Gérard, Inbal Friedler, Laboratoire Charles Fabry de l'Institut d'Optique / Naphel, Laboratoire Charles Fabry de l'Institut d'Optique (LCFIO), 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), Nanophysique et Semiconducteurs (NPSC), 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), Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), ANR-06-NSCI-0003,NanoEPR,Deterministic single quantum dot Nano-sources of Entangled Photon paiRs (NAnoEPR)(2006), and 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)

Subjects
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Materials science, business.industry, Nanowire, Nanophotonics, Physics::Optics, 02 engineering and technology, Dielectric, 021001 nanoscience & nanotechnology, 01 natural sciences, Surface plasmon polariton, Atomic and Molecular Physics, and Optics, 010309 optics, Condensed Matter::Materials Science, Semiconductor, Optics, Quantum dot, 0103 physical sciences, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Optoelectronics, OCIS codes: 130.2790, 350.4238, 260.3910, 250.5590, Thin film, Photonics, 0210 nano-technology, business
Abstract

International audience; Using a fully vectorial frequency-domain aperiodic Fourier modal method, we study nanowire metallic mirrors and their photonic performance. We show that the performance of standard quarter-wave Bragg mirrors at subwavelength diameters is surprisingly poor, while engineered metallic mirrors that incorporate a thin dielectric adlayer may offer reflectance larger than 90% even for diameters as small as lambda/5.

Published
2008
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5. High efficiency single photon source: the photonic wire geometry

Author

Joël Bleuse, Inbal Friedler, Torben Roland Nielsen, Jean-Michel Gérard, N. S. Malik, M. Bazin, Jean-Paul Hugonin, Julien Claudon, Philippe Lalanne, Niels Gregersen, and Jesper Mørk

Subjects
Materials science, Photon, business.industry, Nanowire, Physics::Optics, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, Condensed Matter::Materials Science, Optics, Semiconductor, Quantum dot, Single-photon source, Optoelectronics, Spontaneous emission, Photonics, business, Electron-beam lithography
Abstract

We present a single-photon-source design based on the emission of a quantum dot embedded in a semiconductor (GaAs) nanowire. The nanowire ends are engineered (efficient metallic mirror and tip taper) to reach a predicted record-high collection efficiency of 90% with a realistic design. Preliminary experimental results already show a measured efficiency of 44%.

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