GaP-Based High-Efficiency Elliptical Cylinder Metasurface in Visible Light
Shuai-Meng Wang, Xiao-Hong Sun** , De-Li Chen, Fan Wu
Henan Key Laboratory of Laser and Opto-electric Information Technology, School of Information Engineering, Zhengzhou University, Zhengzhou 450052
Abstract ：Compared with the metal antenna metasurface, the dielectric metasurface has better optical characteristics and smaller ohmic loss in the optical band, which makes it superior. An elliptical cylindrical nanostructured antenna is designed using GaP with excellent transmission characteristics in the visible band. This structure has a transmission efficiency of up to 0.96 in the visible light band. Based on the Pancharatnam–Berry (PB) phase control principle, the metasurface structure composed of the antennas is studied, and its abnormal refraction metasurface and focusing meta-lens are analyzed. It is a highly efficient sub-wavelength structure, and promises great potential for the applications of circular polarization optics, nanolithography, dense storage and biophotonics.
收稿日期: 2020-02-10
出版日期: 2020-04-25
:
78.67.Pt
(Multilayers; superlattices; photonic structures; metamaterials)
81.40.-z
(Treatment of materials and its effects on microstructure, nanostructure, And properties)
42.70.-a
(Optical materials)
42.25.Bs
(Wave propagation, transmission and absorption)
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2020, Vol. 37 
