Zobrazeno 1 - 10
of 296
pro vyhledávání: '"Genevet Patrice"'
Autor:
Lv, Wenjing, Qin, Haoye, Su, Zengping, Zhang, Chengzhi, Huang, Jiongpeng, Shi, Yuzhi, Li, Bo, Genevet, Patrice, Song, Qinghua
C points, characterized by circular polarization in momentum space, play crucial roles in chiral wave manipulations. However, conventional approaches of achieving intrinsic C points using photonic crystals with broken symmetries suffer from low Q fac
Externí odkaz:
http://arxiv.org/abs/2407.17976
Publikováno v:
Phys. Rev. B 109, 045414 (2024)
Resonances are essential for understanding the interactions between light and matter in photonic systems. The real frequency response of the non-Hermitian systems depends on the complex-valued resonance frequencies, which are the poles of electromagn
Externí odkaz:
http://arxiv.org/abs/2307.04654
Autor:
Martins, Renato Juliano, Marinov, Emil, Youssef, M. Aziz Ben, Kyrou, Christina, Joubert, Mathilde, Colmagro, Constance, Gâté, Valentin, Turbil, Colette, Coulon, Pierre-Marie, Turover, Daniel, Khadir, Samira, Giudici, Massimo, Klitis, Charalambos, Sorel, Marc, Genevet, Patrice
Deploying advanced imaging solutions to robotic and autonomous systems by mimicking human vision requires simultaneous acquisition of multiple fields of views, named the peripheral and fovea regions. Low-resolution peripheral field provides coarse sc
Externí odkaz:
http://arxiv.org/abs/2204.04208
Autor:
Colom, Rémi, Mikheeva, Elena, Achouri, Karim, Zuniga-Perez, Jesus, Bonod, Nicolas, Martin, Olivier J. F., Burger, Sven, Genevet, Patrice
Publikováno v:
Laser Photon. Rev. 17, 2200976 (2023)
Full wavefront control by photonic components requires that the spatial phase modulation on an incoming optical beam ranges from 0 to 2{\pi}. Because of their radiative coupling to the environment, all optical components are intrinsically non-Hermiti
Externí odkaz:
http://arxiv.org/abs/2202.05632
Autor:
Gao, Zhanjie, Golla, Sandeep, Sawant, Rajath, Osipov, Vladimir, Briere, Gauthier, Vezian, Stephane, Damilano, Benjamin, Genevet, Patrice, Dorfman, Konstantin E.
Relying on the local orientation of nanostructures, Pancharatnam-Berry metasurfaces are currently enabling a new generation of polarization-sensitive optical devices. A systematical mesoscopic description of topological metasurfaces is developed, pro
Externí odkaz:
http://arxiv.org/abs/2102.13448
Autor:
Cueff, Sebastien, Taute, Arnaud, Bourgade, Antoine, Lumeau, Julien, Monfray, Stephane, Song, Qinghua, Genevet, Patrice, Letartre, Xavier, Berguiga, Lotfi
We experimentally demonstrate a very large dynamic optical reflection modulation from a simple unpatterned layered stack of phase-change materials ultrathin films. Specifically, we theoretically and experimentally demonstrate that properly designed d
Externí odkaz:
http://arxiv.org/abs/2009.02532
Autor:
Khadir, Samira, Andrén, Daniel, Verre, Ruggero, Song, Qinghua, Monneret, Serge, Genevet, Patrice, Käll, Mikael, Baffou, Guillaume
Publikováno v:
ACS Photonics 8, 603-613 (2021)
An optical metasurface consists of a dense and usually non-uniform layer of scattering nanostructures behaving as a continuous and extremely thin optical component, with predefined phase and intensity transmission/reflection profiles. To date, variou
Externí odkaz:
http://arxiv.org/abs/2008.11369
Autor:
Stolt, Timo, Kim, Jeonghyun, Héron, Sébastien, Vesala, Anna, Huttunen, Mikko. J., Czaplicki, Robert, Kauranen, Martti, Rho, Junsuk, Genevet, Patrice
Publikováno v:
Phys. Rev. Lett. 126, 033901 (2021)
We demonstrate phase-matched second-harmonic generation (SHG) from three-dimensional metamaterials consisting of stacked metasurfaces. To achieve phase matching, we utilize a novel mechanism based on phase engineering of the metasurfaces at the inter
Externí odkaz:
http://arxiv.org/abs/2006.06988
Cherenkov radiation is generally believed to be threshold-free in hyperbolic metamaterials owing to the extremely large photonic density of states in classical local framework. While recent advances in nonlocal and quantum effects extend our understa
Externí odkaz:
http://arxiv.org/abs/2002.04252
Autor:
Lassalle, Emmanuel, Lalanne, Philippe, Aljunid, Syed, Genevet, Patrice, Stout, Brian, Durt, Thomas, Wilkowski, David
Publikováno v:
Phys. Rev. A 101, 013837 (2020)
An anisotropic quantum vacuum (AQV) has been predicted to induce quantum interferences during the spontaneous emission process in an atomic $V$-transition [G. S. Agarwal, Phys. Rev. Lett. 84, 5500 (2000)]. Nevertheless, the finite lifetime of the exc
Externí odkaz:
http://arxiv.org/abs/1909.02409