Author:
Yang Li-Jing,Li Jiu-Sheng
Abstract
Vortex beam generators carrying orbital angular momentum (OAM) with both transmission and reflection modes has broad application prospects in full-space high data capacity communication and orbital angular momentum multiplexing systems. In this work, we proposed a vanadium dioxide (VO2) assisted metasurface to independently produce and manipulate focused vortex transmission-reflection modes with different number of beams and focal lengths under right-handed circular polarized (RCP) wave incidence. The proposed metasurface generates the diagonal vortex beams, four vortex beams, and focused vortex beam for transmission mode at 1.26THz and reflection mode at 1.06THz by changing phase state of the VO2. Our work may find many potential applications in future high data capacity information multiplexing communication systems.
Funder
National Natural Science Foundation of China
Talent project of Zhejiang Provincial Department of Science and Technology
Zhejiang Key R & D Project of China
Research Funds for the Provincial Universities of Zhejiang
Subject
Atomic and Molecular Physics, and Optics
Cited by
13 articles.
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