Broadband Achromatic and Polarization Insensitive Focused Optical Vortex Generator Based on Metasurface Consisting of Anisotropic Nanostructures

Optical vortex (OV) beams are ideal carriers for high-capacity optical communication, and long-wave infrared (LWIR) is the ideal wavelength band for long-range optical communication. Here, we propose a method for the achromatic generation of focused optical vortex (FOV) beams with arbitrary homogeno...

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Autors principals:	Naitao Song, Nianxi Xu, Jinsong Gao, Xiaonan Jiang, Dongzhi Shan, Yang Tang, Qiao Sun, Hai Liu, Xin Chen
Format:	Artigo
Idioma:	Inglês
Publicat:	Frontiers Media S.A. 2022-02-01
Col·lecció:	Frontiers in Physics
Matèries:	broadband achromatism optical vortex germanium metasurface polarization insensitive orbital angular momentum modal purity
Accés en línia:	https://www.frontiersin.org/articles/10.3389/fphy.2022.846718/full
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