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Bernard Sermage
Researcher at Orange S.A.
Publications - 117
Citations - 3051
Bernard Sermage is an academic researcher from Orange S.A.. The author has contributed to research in topics: Photoluminescence & Exciton. The author has an hindex of 26, co-authored 116 publications receiving 2964 citations. Previous affiliations of Bernard Sermage include CNET & Centre national d'études des télécommunications.
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Journal ArticleDOI
Enhanced Spontaneous Emission by Quantum Boxes in a Monolithic Optical Microcavity
TL;DR: In this paper, a spontaneous emission rate enhancement by a factor of up to 5 was selectively observed for the QB's which are on resonance with one-cavity mode. But the effect of the random spatial and spectral distributions of the QBs was not considered.
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Enhanced radiative recombination of free excitons in GaAs quantum wells.
TL;DR: Radiative properties of free excitons in a single GaAs quantum well are studied under resonant excitation and a radiative lifetime of 10.4 ps is deduced in the absence of dephasing mechanisms.
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InAs quantum boxes: Highly efficient radiative traps for light emitting devices on Si
TL;DR: In this article, the radiative quantum efficiencies of an array of InAs/GaAs quantum boxes (QBs) obtained by self-organized growth and of a single high quality InGaAs QW on GaAs substrates were compared by photoluminescence.
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Optical evidence of the direct-to-indirect-gap transition in GaAs-AlAs short-period superlattices.
G. Danan,Bernard Etienne,F. Mollot,R. Planel,A. M. Jean-Louis,F. Alexandre,Bernard Jusserand,G. Le Roux,J. Y. Marzin,H. Savary,Bernard Sermage +10 more
TL;DR: As a result of spatial transfer of electrons in AlAs, an accurate value of the offset parameter is obtained, which is in good agreement with an envelope-function description applied to each extremum of the host-material band structure.
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Microcavity polariton spin quantum beats without a magnetic field: A manifestation of Coulomb exchange in dense and polarized polariton systems
Pierre Renucci,Thierry Amand,Xavier Marie,Pascale Senellart,Jacqueline Bloch,Bernard Sermage,K. V. Kavokin +6 more
TL;DR: In this article, the authors investigated microcavity polariton spin dynamics under resonant excitation using polarization and time-resolved secondary emission spectroscopy, and showed that Coulomb scattering dominates the other processes, and stimulation occurs when the occupation of the final state with a given mode polarization approaches unity.