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Benoit Deveaud
Researcher at École Polytechnique Fédérale de Lausanne
Publications - 352
Citations - 9809
Benoit Deveaud is an academic researcher from École Polytechnique Fédérale de Lausanne. The author has contributed to research in topics: Exciton & Quantum well. The author has an hindex of 42, co-authored 352 publications receiving 9092 citations. Previous affiliations of Benoit Deveaud include École Polytechnique & Orange S.A..
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Hyperbolic spin vortices and textures in exciton–polariton condensates
TL;DR: This work reports on the spontaneous occurrence of hyperbolic spin vortices in polariton condensates, by directly imaging both their phase and spin structure, and observe the associated spatial polarization patterns, spin textures that arise in the condensate.
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Transverse and longitudinal space-charge-induced broadenings of ultrafast electron packets
Stéphane Collin,Michele Merano,M. Gatri,Samuel Sonderegger,Pierre Renucci,J. D. Ganiere,Benoit Deveaud +6 more
TL;DR: In this paper, a three-dimensional mean-field model was proposed to take into account Coulomb repulsion in all directions, and measurements of spatial electron pulse widths were carried out after extraction from a photo-emission electron gun.
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Capture of photoexcited carriers by a laser structure
TL;DR: In this paper, the authors investigated the capture time of photoexcited carriers in different laser structures by sub-picosecond luminescence spectroscopy and found that it ranges between 2 and 3 ps for both linear and parabolic grading, and to much longer in nongraded structures.
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Ultrafast optical evidence for resonant electron capture in quantum wells.
TL;DR: The dynamics of carrier capture in GaAs quantum wells have been measured with femtosecond resolution using pump and probe experiments under resonant excitation conditions, giving strong evidence for the importance of the quantum-mechanical LO-phonon-assisted capture mechanism predicted by theoretical calculations.
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Picosecond luminescence approach to vertical transport in GaAs/GaAlAs superlattices
TL;DR: In this paper, the mean transfer time of photoexcited carriers through 9000 A of superlattice was estimated, and it was found that the transfer time was about 4 nsec in a 40/40 A and 800 psec in an 30/30 A one.