Pancharatnam–Berry metasurface for terahertz wave radar cross section reduction

作     者：Shao-He Li Jiu-Sheng Li 李绍和;李九生

作者机构：Center for THz Research China Jiliang University 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2019年第28卷第9期

页      面：220-226页

核心收录：

学科分类：07[理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.61871355 and 61831012) 

主　　题：terahertz metasurface terahertz optics terahertz polarization 

摘      要：The digital coding metasurfaces need several kinds of meta-particle structures to obtain corresponding electromagnetic wave responses and require time-consuming *** this paper, we present train-symbol-shaped meta-particles with various orientations utilizing Pancharatnam-Berry(PB) phase to achieve 1-, 2-, and 3-bit digital coding *** wave scattering patterns of the coding metasurfaces with regular and random sequences are given and *** have strongly suppressed backward scattering with approximately-13.5 dB radar cross section(RCS) reduction in a wide band range from 0.85 THz to 1.6 *** proposed digital coding metasurfaces provide a simple way and new opportunities for manipulating terahertz wave scattering with polarization independence.