GaP-Based High-Efficiency Elliptical Cylinder Metasurface in Visible Light  

作　　者：Shuai-Meng Wang Xiao-Hong Sun De-Li Chen Fan Wu 王帅蒙;孙晓红;陈德利;武凡(Henan Key Laboratory of Laser and Opto-electric Information Technology,School of Information Engineering,Zhengzhou University,Zhengzhou 450052)

机构地区：[1]Henan Key Laboratory of Laser and Opto-electric Information Technology,School of Information Engineering,Zhengzhou University,Zhengzhou 450052

出　　处：《Chinese Physics Letters》2020年第5期98-101,共4页中国物理快报（英文版）

基　　金：Science and Technology Major Project of Henan Province,China(Grant No.161100210200)。

摘　　要：Compared with the metal antenna metasurface,the dielectric metasurface has better optical characteristics and smaller ohmic loss in the optical band,which makes it superlor.An elliptical cylindrical nanostructured antenna is designed using GaP with excellent transmission characteristics in the visible band.This structure has a transmjssion 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 ef Rcient sub-wavelength structure,and promises great potential for the applications of circular polarization optics,nanolithography,dense storage and biophotonics.

关 键 词：VISIBLE CYLINDRICAL BERRY 

分 类 号：TN820[电子电信—信息与通信工程]