Yoan Léger
134
Documents
Presentation
*Y. Léger obtained a PhD degree in 2007, at Néel institute in Grenoble where he investigated the optical properties of individual magnetic quantum dots and demonstrated the optical detection of a single magnetic atom spin in the solid state. He then moved to B. Deveaud’s group in EPFL (Switzerland). His work focused on the non-linear properties of semiconductor microcavities in the strong-coupling regime from polariton superfluidity to multistability and ultrafast all-optical spin-switching. As a postdoc, he co-supervised the work of 4 PhD students. Y. Léger joined FOTON Laboratory in 2012 as a CNRS researcher to work on semiconductor micro-resonators. Y. Léger is the co-author of 35 publications and a referee for Nature Photonics, Physical Review Letters and Physical Review B.*
*Y. Léger obtained a PhD degree in 2007, at Néel institute in Grenoble where he investigated the optical properties of individual magnetic quantum dots and demonstrated the optical detection of a single magnetic atom spin in the solid state. He then moved to B. Deveaud’s group in EPFL (Switzerland). His work focused on the non-linear properties of semiconductor microcavities in the strong-coupling regime from polariton superfluidity to multistability and ultrafast all-optical spin-switching. As a postdoc, he co-supervised the work of 4 PhD students. Y. Léger joined FOTON Laboratory in 2012 as a CNRS researcher to work on semiconductor micro-resonators. Y. Léger is the co-author of 35 publications and a referee for Nature Photonics, Physical Review Letters and Physical Review B.*
Publications
GaP WGM microdisks for second order nonlinear optics2024 24th International Conference on Transparent Optical Networks (ICTON), Jul 2024, Bari, Italy. pp.1-1, ⟨10.1109/icton62926.2024.10647803⟩
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Caractérisation de couches minces de ZnS et design de guides d'ondes en ZnS pour la photonique non linéaireJournée nationale de l'optique guidée, Jul 2023, Lyon, France
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Optical characterizations of epitaxial materials: from crystal defects to optoelectronic properties2nd OPERA training school “Characterization techniques for epitaxial materials", Jun 2023, Aveiro, Portugal
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Génération de seconde harmonique dans un guide d’onde en phosphure de gallium à orientation structurée aux longueurs d’onde télécomJournées Nationales d'Optique Guidée (JNOG'40), Jul 2023, Lyon, France
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Transport in photoelectrochemical heterojunctions: Interface-controlled physics13th Meeting on NanoScience Advances (MNA 2022), Sep 2022, Porquerolles, France
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Tunable bandgap III-V alloys on a low-cost Si substrate for solar-assisted water splittingInternational Workshop on Emerging Solar Energy Materials and Applications (ESEMA 2022), May 2022, Porquerolles, France
Conference papers
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Hétéro-épitaxie III-V/Si : contrôle des propriétés des surfaces et interfaces pour la photo-électrochimie35èmes Journées Surfaces et Interfaces, Jan 2022, Dijon (virtual), France
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MBE-grown GaAs on a low-cost Si substrate for solar hydrogen productionEMRS Fall Meeting 2022, European Materials Research Society, Sep 2022, Warsaw, Poland
Conference papers
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Quasi-Phase Matched Second Harmonic Generation in Orientation-Patterned Gallium Phosphide WaveguidesCLEO: Science and Innovations, S and I 2022, May 2022, San Jose, United States. pp.JW3B.184, ⟨10.1364/CLEO_AT.2022.JW3B.184⟩
Conference papers
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Robust 2D semimetallic inclusions boost performances of III-V/Si heterostructures for water-splitting17è Journées de la Matière Condensée (JMC 17), Aug 2021, Rennes (virtual), France
Conference papers
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III-V/Si photoelectrodes with ambipolar properties5èmes Journées des Carburants Solaires, Sep 2021, Saint Jacut de la Mer, France
Conference papers
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Is a substrate miscut really required for high quality III-V/Si monolithic integration?21st International Conference on Molecular Beam Epitaxy (ICMBE 2021), Sep 2021, Mexico (virtual), Mexico
Conference papers
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High-Quality Factor Zinc-Blende III-V Microdisks on Silicon for Nonlinear PhotonicsCompound Semiconductor Week 2021 (CSW 2021), May 2021, Stockholm, France
Conference papers
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Gallium phosphide transfer printing for integrated nonlinear photonicsConference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference 2021 (CLEO-Europe/EQEC 2021), Jun 2021, Munich, Germany. ⟨10.1109/CLEO/Europe-EQEC52157.2021.9541998⟩
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Optical losses in GaP microdisks on Si with controlled random polarity17è Journées de la Matière Condensée (JMC 17), Aug 2021, Rennes (virtual), France
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Hybrid ambipolar 2D semimetal/semiconductor III-V/Si heterostructures: Promises for photonics, energy harvesting and electronicsWebinar on Materials science, engineering and technology - VEBLEO, VEBLEO international organization, Dec 2021, virtual, India
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III-V/Si antiphase boundaries used as 2D-semimetallic topological vertical inclusions for solar hydrogen production21st International Conference on Molecular Beam Epitaxy (IC-MBE 2021), Sep 2021, Mexico (virtual), Mexico
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Dual wavelength coupler for second-harmonic generation in gallium phosphide microdisksInternational Conference Laser Optics (ICLO), Nov 2020, St-Petersburg, Russia
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GaPSb/Si tandem material with APBs for efficient overall water splittingJournées Nanomatériaux de Rennes, Jan 2020, Rennes, France
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Random crystal polarity of Gallium phosphide microdisks on siliconJournées Nanomatériaux de Rennes, Jan 2020, Rennes, France
Conference papers
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Crystal-polarity engineered gallium phosphide microdisks grown on siliconIOP conference- PHOTON2020, Sep 2020, virtual, United Kingdom
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Gallium phosphide on insulator photonics enabled by micro-transfer printingIntegrated Photonics Research, Silicon and Nanophotonics, 2020, Washington, United States. pp.ITu2A.6, ⟨10.1364/IPRSN.2020.ITu2A.6⟩
Conference papers
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Solar Water Splitting: surface energy engineering of GaP Template on SiEuropean Materials Research Society - Spring Meeting 2019 (E-MRS 2019 Spring Meeting), Apr 2019, Phoenix, United States
Conference papers
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Spectral Hole Burning Spectroscopy on Quantum Dashes and Quantum Dots for Dual-Frequency Laser EngineeringCompound Semiconductor Week 2019 (CSW 2019), May 2019, Nara, France. pp.1-2
Conference papers
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Universal growth mechanism of III-V/Si: using antiphase boundaries for devices.Réunion plénière du GDR Pulse (PULSE 2019), Jul 2019, Clermont-Ferrand, France
Conference papers
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III-V/Si photoelectrodes: a new route for solar hydrogen production11è Journées Scientifiques de Porquerolles (JSP2019), C'Nano-PACA, Sep 2019, Porquerolles, France
Conference papers
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THz surface phonon polariton generation in GaP photonic waveguide44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2019), Sep 2019, Paris, France. pp.19149231
Conference papers
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Monolithic integration of III-V semiconductors on silicon for photonics and solar hydrogen productionSPb Photonic, Optoelectronic, & Electronic Materials (SPb-POEM 2019), Apr 2019, St Petersburg, Russia
Conference papers
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GaPSb/Si photoelectrode for Solar Fuel ProductionEuropean COST multsicaleSolar Final meeting, Apr 2019, Sofia, Bulgaria
Conference papers
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GaP-based materials on silicon for photonics and energySmart NanoMaterials 2018: Advances, Innovation and Applications (SNAIA2018), Dec 2018, Paris, France
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Large scale textured GaP(114) growth on vicinal Si substrate by Molecular Beam Epitaxy for water splitting applications20th International Conference on Molecular-Beam Epitaxy (ICMBE 2018), Sep 2018, Shanghai, China. pp.Tu-P-43(S)
Conference papers
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Nano Beam X-ray Scattering on GaP/Si for III-V Monolithic Integration on SiliconEuropean Materials Research Society - Spring Meeting 2018 (E-MRS 2018 Spring Meeting), Jun 2018, Strasbourg, France
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GaP Template on Si for Solar Water Splitting: surface energy engineeringnanoGe Fall Meeting 2018 (NGFM18), Oct 2018, Torremolinos, Spain
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(114) GaP surface texturation on Si for water splittingEMRS Spring meeting 2018, Jun 2018, Strasbourg, France
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1.5 µm Quantum Dots Spectral Hole Burning experiments for dual frequency laser engineering34th International Conference on the Physics of Semiconductors (ICPS 2018), Jul 2018, Montpellier, France
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Opportunities and Obstacles of Monolithic III-V Integration on SiliconDesign, Automation & Test in Europe conference (DATE 2017) - 3rd International Workshop on Optical/Photonic Interconnects for Computing Systems (OPTICS Workshop), Mar 2017, Lausanne, Switzerland
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Plasma etching defect formation and changes in the electronic and structural properties of InP/InAsP quantum wells18th Canadian Semiconductor Science and Technology Conference (CSSTC 2017), Oct 2017, Waterloo, Canada
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Optical properties of GaP/Si active microdisks containing InGaAs/GaP quantum dotsNanophotonics and Micro/Nano Optics International Conference 2017 (NANOP 2017), Prem C, Sep 2017, Barcelona, Spain
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Impact of crystal antiphase boundaries on second harmonic generation in GaP microdisksEuropean Materials Research Society - Spring Meeting 2016 (E-MRS 2016 Spring Meeting), May 2016, Lille, France
Conference papers
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Tailoring second-order harmonic generation with crystal antiphase domains in GaP/Si19th International Conference on Molecular-Beam Epitaxy (IC-MBE 2016), Sep 2016, Montpellier, France
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Laser integration challenges for on-chip optical interconnectsOPTICS 2016 workshop, Mar 2016, Dresden, Germany
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MBE-grown GaP/Si micro-disks18th European Molecular Beam Epitaxy Workshop (Euro-MBE 2015), Mar 2015, Canazei, Italy
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(In)GaP integration on Si for photonics and energyEuropean Materials Research Society - Fall Meeting 2015 (E-MRS 2015 Fall Meeting), Sep 2015, Warsaw, Poland
Conference papers
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Lower-Upper Polariton Interactions Proved with Two-Dimensional Fourier Transform (2DFT) Spectroscopy in Semiconductor Microcavity2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference (CLEO-Europe/EQEC 2015), Jun 2015, Munich, Germany. pp.EG_P_5
Conference papers
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Investigation des propriétés optiques des microdisques de phosphure de gallium14ème Colloque international francophone sur les Méthodes et Techniques Optiques pour l'Industrie / 16ème congrès français du club FLUVISU/SFO (CMOI-FLUVISU 2015), Nov 2015, Lannion, France. pp.184-189
Conference papers
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Investigation des propriétés optiques des micro-disques de GaP pour l’intégration de fonctions optiques sur siliciumOptique Bretagne 2015 - 35ème Journées Nationales d'Optique Guidée (JNOG'35), Jul 2015, Rennes, France. pp.133-135
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Investigation of the optical properties of GaP microdisks for optical functions integrated on siliconCompound Semiconductor Week 2015 (CSW 2015), Jun 2015, Santa-Barbara, United States
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Structural, electronic properties and carrier dynamics in InGaAs(N)/GaP quantum dots18th European Molecular Beam Epitaxy Workshop (Euro-MBE 2015), Mar 2015, Canazei, Italy
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Electroluminescence of InGaAs/GaP quantum dots and band engineering of AlGaP/GaP laser injection layersCompound Semiconductor Week 2015 (CSW 2015), Jun 2015, Santa-Barbara, United States
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Phase space monitoring of exciton-polariton multistabilitySPIE Photonics West (OPTO 2014), Feb 2014, San Francisco, United States. pp.89840W, ⟨10.1117/12.2035371⟩
Conference papers
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Composition profiles in InP/InAsP quantum well structures under the effect of reactives gases during dry etching processes — Luminescence and SIMS26th International Conference on Indium Phosphide and Related Materials (IPRM 2014), May 2014, Montpellier, France. pp.P7, ⟨10.1109/ICIPRM.2014.6880554⟩
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Intégration pseudomorphique dans la filière GaP/Si pour les applications lasers sur pucejournées thématiques du GDR Ondes GT2, Nov 2014, Orsay, France
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1.55 μm VCSEL based on InAs quantum-dashes with an emission covering 105 nm wavelength rangeEuro VCSEL-DAY 2013, May 2013, Lausanne, Switzerland
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VCSEL à fils quantiques présentant une émission laser de 1647 à 1542 nm14èmes Journées Nano, Micro et Optoélectronique, May 2013, Evian, France
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1540 to 1645 nm continuous VCSEL emission based on quantum dashes25th International Conference on Indium Phosphide and Related Materials (IPRM), May 2013, Kobe, Japan. pp.1-2, ⟨10.1109/ICIPRM.2013.6562594⟩
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High stability of a MBE grown GaAs/Si photocathode for solar H2 production.21st EuroMBE Workshop, Apr 2023, Madrid, Spain. 2023
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L’électronique pour la conversion - Projet ciblé OFCOC: Optical Frequency Combs On a ChipLancement et première journée scientifique annuelle du PEPR Électronique, Mar 2023, Poitiers, France
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Design de microrésonateurs intégrés à base de phosphure de gallium pour la génération de peignes de fréquences dans le proche et moyen-infrarougeJournées Nationales de l'Optique guidée 2023, Jul 2023, Lyon, France
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Performance of epitaxial GaAs/Si vs GaAs photocathodes for solar hydrogen production.74th Annual Meeting of the International Society of Electrochemistry, Sep 2023, Lyon, France. 2023
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Using in-plane built-in electric fields and electrical shunts of antiphase boundaries for III-V/Si solar harvesting devices21st EuroMBE Workshop, Apr 2023, Madrid, Spain. 2023
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Performances of III-P/Si based photoelectrodes for solar hydrogen productionJournées Nationales du photovoltaïque 2020, Jan 2021, Dourdan, France. 2021
Conference poster
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Bandgap engineering of III-V semiconductors on silicon for solar hydrogen production5èmes Journées des Carburants Solaires, Sep 2021, Saint Jacut de la Mer, France
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MBE-grown GaAs(x)P(1-x)/Si photoelectrodes for solar hydrogen production21st International Conference on Molecular-Beam Epitaxy (ICMBE 2018), Sep 2021, Mexico (virtual), Mexico
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Generalization of second order quasi-phase matching in whispering gallery mode resonators using Berry PhaseOSA Advanced Photonic Congress, Jul 2020, Washington, United States
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Dual wavelength vertical coupling for SHG in GaP microdisksJournées Nanomatériaux de Rennes, Jan 2020, Rennes, France. 2020
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Influence des paramètres de croissance de l'homoépitaxie silicium par UHV- CVD sur la reconstruction de surface du siliciumJournées Nanomatériaux, Jan 2020, Rennes, France
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Dual wavelength vertical coupling for SHG in GaP microdisks39è Journées Nationales d'Optique Guidée (JNOG 2019), Jul 2019, Palaiseau, France
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Electron-phonon interactions around antiphase boundaries in InGaP/SiGe/Si : structural and optical characterizationsInternational Symposium : 20th Anniversary of LPQM, Apr 2019, Cachan, France
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A Study on the Strain Distribution by Scanning X-ray diffraction on GaP/Si for III-V Monolithic Integration on Silicon for Nonlinear OpticsRayons X et Matière 2019, Nov 2019, Nancy, France
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Antiphase boundaries in InGaP/SiGe/Si : structural and optical propertiesEuropean Materials Research Society - Spring Meeting 2018 (E-MRS 2018 Spring Meeting), Jun 2018, Strasbourg, France. 2018
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Structural & Spectroscopic Study of InAs/InP Quantum Dots for Dual-Frequency Laser Engineering16è Journées Nano, Micro et Optoélectronique (JNMO 2018), Jun 2018, Agay, France
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Photoluminescence of 2D-vertical In-rich APBs embedded in InGaP/SiGe/Si20th International Conference on Molecular-Beam Epitaxy (ICMBE 2018), Sep 2018, Shanghai, China. 2018
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Excitons bounded around In-rich antiphase boundaries34th International Conference on the Physics of Semiconductors (ICPS 2018), Jul 2018, Montpellier, France. 2018
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Indium content impact on structural and optical properties of (In,Ga)As/GaP quantum dots31è colloque Journées Surfaces et Interfaces (JSI 2017), Jan 2017, Rennes, France
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Investigation of a Quantum Dot Vertical External-Cavity Surface-Emitting Laser: Towards THz Frequency Generation37è Journées Nationales d'Optique Guidée (JNOG 2017), Jul 2017, Limoges, France. 2017
Conference poster
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X-ray Coherent Scattering on GaP/Si for III-V Monolithic Integration on SiliconInternational Workshop on Phase Retrieval and Coherent Scattering (COHERENCE 2016), Jun 2016, Saint-Malo, France. 2016
Conference poster
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Optical and magneto-optical properties of GaAsPN/GaPN quantum wellsXV Brazil-Materials Research Society Annual Meeting (B-MRS 2016), Sep 2016, Campinas, São Paulo, Brazil. , O.P1.23
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Thermal management of monolithic and heterogeneous integrated lasersCompound Semiconductor Week 2016 (CSW 2016), Jun 2016, Toyama, Japan
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Impact of Antiphase Boundaries on Non-linear Frequency Conversion in GaP/Si MicrodisksCompound Semiconductor Week 2016 (CSW 2016), Jun 2016, Toyama, Japan
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Structural and optical properties investigation of (In,Ga)As/GaP quantum dots for direct bandgap emission19th International Conference on Molecular-Beam Epitaxy (IC-MBE 2016), Sep 2016, Montpellier, France
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AlGaP-growth and doping by MBE19th International Conference on Molecular-Beam Epitaxy (IC-MBE 2016), Sep 2016, Montpellier, France
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Carrier injection in GaP-based laser waveguides and dilute nitrides gain medium18th European Molecular Beam Epitaxy Workshop (Euro-MBE 2015), Mar 2015, Canazei, Italy. 2015
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Electroluminescence de boites quantiques InGaAs/GaP et ingénérie de bande des couches d’injection laser AlGaP/GaPOptique Bretagne 2015 - 35ème Journées Nationales d'Optique Guidée (JNOG'35), Jul 2015, Rennes, France
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Carrier capture and relaxation in GaAsPN/GaP quantum wells32nd International Conference on the Physics of Semiconductors (ICPS 2014), Aug 2014, Austin, United States. 2014
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Electrical injection in GaP-based laser waveguides and active areas26th International Conference on Indium Phosphide and Related Materials (IPRM 2014), May 2014, Montpellier, France. IEEE, 26th International Conference on Indium Phosphide and Related Materials (IPRM 2014), pp.P23, 2014, ⟨10.1109/ICIPRM.2014.6880545⟩
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Integrated Lasers on SiliconISTE Press - Elsevier, 2016, 9781785480621. ⟨10.1016/C2015-0-01237-0⟩
Books
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Integration of III-V nanostructures on silicon in the pseudomorphic approach2013
Other publications
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Détection de spins individuels dans les boîtes quantiques magnétiquesPhysique Atomique [physics.atom-ph]. Université Joseph-Fourier - Grenoble I, 2007. Français. ⟨NNT : ⟩
Theses
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