Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Stéphane Vezian"'
Autor:
Caroline Elias, Maud Nemoz, Hélène Rotella, Frédéric Georgi, Stéphane Vézian, Maxime Hugues, Yvon Cordier
Publikováno v:
APL Materials, Vol 12, Iss 3, Pp 039901-039901-2 (2024)
Externí odkaz:
https://doaj.org/article/8ba34bf2abe346928daf0ca12f2063a2
Autor:
Minh Tuan Dau, Mohamed Al Khalfioui, Adrien Michon, Antoine Reserbat-Plantey, Stéphane Vézian, Philippe Boucaud
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract We build new material descriptors to predict the band gap and the work function of 2D materials by tree-based machine-learning models. The descriptor’s construction is based on vectorizing property matrices and on empirical property functi
Externí odkaz:
https://doaj.org/article/c29f366c343340218b5e43e9154f3826
Autor:
Caroline Elias, Maud Nemoz, Hélène Rotella, Frédéric Georgi, Stéphane Vézian, Maxime Hugues, Yvon Cordier
Publikováno v:
APL Materials, Vol 11, Iss 3, Pp 031105-031105-6 (2023)
Due to its large piezoelectric and spontaneous polarization coefficients combined with the possibility of being grown lattice-matched with GaN, wide bandgap ScAlN is becoming a promising material in III-nitride semiconductor technology. In this work,
Externí odkaz:
https://doaj.org/article/710ed96f7898462db701fb087b2b14c7
Autor:
Thi Huong Ngo, Bernard Gil, Tatiana V. Shubina, Benjamin Damilano, Stéphane Vezian, Pierre Valvin, Jean Massies
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-9 (2018)
Abstract We investigate the optical properties of porous GaN films of different porosities, focusing on the behaviors of the excitonic features in time-integrated and time-resolved photoluminescence. A substantial enhancement of both excitonic emissi
Externí odkaz:
https://doaj.org/article/6fb6501d0db34b0280442a5978ce5f1d
Autor:
Qinghua Song, Arthur Baroni, Pin Chieh Wu, Sébastien Chenot, Virginie Brandli, Stéphane Vézian, Benjamin Damilano, Philippe de Mierry, Samira Khadir, Patrick Ferrand, Patrice Genevet
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Though multiplexing meta-holograms remains an attractive approach for realizing optical encoding, existing methods encode information based on the intensity of the holographic images. Here, the authors report vectorial metasurfaces that decouple and
Externí odkaz:
https://doaj.org/article/8ff8c49eebfc4f2ca97515ebe6a4ded8
Autor:
Qinghua Song, Arthur Baroni, Rajath Sawant, Peinan Ni, Virginie Brandli, Sébastien Chenot, Stéphane Vézian, Benjamin Damilano, Philippe de Mierry, Samira Khadir, Patrick Ferrand, Patrice Genevet
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
Controlling light with planar elements requires full polarization channels and reconstruction of optical signals. Here, the authors have demonstrated a general method relying on pixelated metasurfaces that enables wavefront shaping with arbitrary out
Externí odkaz:
https://doaj.org/article/453415e54c4b4f15a87206b6f808da49
Autor:
Haoran Ren, Gauthier Briere, Xinyuan Fang, Peinan Ni, Rajath Sawant, Sébastien Héron, Sébastien Chenot, Stéphane Vézian, Benjamin Damilano, Virginie Brändli, Stefan A. Maier, Patrice Genevet
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-8 (2019)
Conventional hologram designs lack orbital angular momentum selectivity. Here, the authors design metasurface holograms consisting of GaN nanopillars with discrete spatial frequency distributions allowing the reconstruction of distinctive orbital ang
Externí odkaz:
https://doaj.org/article/8c0478d64e3748a9be62d441a1b84381
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