R
Régis André
Researcher at University of Grenoble
Publications - 226
Citations - 8445
Régis André is an academic researcher from University of Grenoble. The author has contributed to research in topics: Polariton & Exciton. The author has an hindex of 36, co-authored 224 publications receiving 7703 citations. Previous affiliations of Régis André include Joseph Fourier University & University of California, Los Angeles.
Papers
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Journal ArticleDOI
Bose-Einstein condensation of exciton polaritons
Jacek Kasprzak,Maxime Richard,S. Kundermann,A. Baas,P. Jeambrun,Jonathan Keeling,Francesca Maria Marchetti,Marzena H. Szymańska,Régis André,Jl Staehli,Vincenzo Savona,Peter B. Littlewood,Benoit Deveaud,Le Si Dang +13 more
TL;DR: A comprehensive set of experiments giving compelling evidence for BEC of polaritons of bosonic quasi-particles are detailed, which indicate the spontaneous onset of a macroscopic quantum phase.
Journal ArticleDOI
Quantized vortices in an exciton–polariton condensate
Konstantinos G. Lagoudakis,Michiel Wouters,Michiel Wouters,Maxime Richard,A. Baas,Iacopo Carusotto,Régis André,D. Le Si Dang,Benoit Deveaud-Plédran +8 more
TL;DR: In this paper, the spontaneous formation of pinned quantized vortices in the Bose-condensed phase of a polariton fluid was observed in a solid state system made of exciton polaritons.
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High-temperature ultrafast polariton parametric amplification in semiconductor microcavities.
Michele Saba,Cristiano Ciuti,Jacqueline Bloch,V. Thierry-Mieg,Régis André,Le Si Dang,S. Kundermann,A. Mura,Giovanni Bongiovanni,Jl Staehli,Benoit Deveaud +10 more
TL;DR: 105 polaritons occupy the same quantum state during the amplification, realizing a dynamical condensate of strongly interacting bosons which can be studied at high temperature and could be exploited for high-repetition all-optical microscopic switches and amplifiers.
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Stimulation of Polariton Photoluminescence in Semiconductor Microcavity
TL;DR: In this article, photoluminescence at low temperature is studied for a CdTe-based microcavity tuned to resonance with a quantum well exciton, and two distinct stimulation effects are observed with increasing excitation.
Journal ArticleDOI
Observation of Half-Quantum Vortices in an Exciton-Polariton Condensate
Konstantinos G. Lagoudakis,Tomas Ostatnický,Alexey Kavokin,Alexey Kavokin,Yuri G. Rubo,Régis André,Benoit Deveaud-Plédran +6 more
TL;DR: Two-dimensional superfluids carrying spin are expected to demonstrate a different type of elementary excitations referred to as half-quantum vortices, characterized by a ρ rotation of the phase and a π rotation ofThe polarization vector when circumventing the vortex core.