Pancharatnam–Berry metasurface for terahertz wave radar cross section reduction

被引：1

作者：

李绍和 ^{[1
]}

李九生 ^{[1
]}

机构：

[1] Center for THz Research, China Jiliang University

来源：

Chinese Physics B | 2019年 / 28卷 / 09期

基金：

中国国家自然科学基金;

关键词：

terahertz metasurface; terahertz optics; terahertz polarization;

D O I：

暂无

中图分类号：

TN948 [电视中心、电视设备]; TB34 [功能材料];

学科分类号：

080501 ; 0810 ; 081001 ;

摘要：

The digital coding metasurfaces need several kinds of meta-particle structures to obtain corresponding electromagnetic wave responses and require time-consuming optimization.In 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 metasurfaces.Terahertz wave scattering patterns of the coding metasurfaces with regular and random sequences are given and discussed.They 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 THz.The proposed digital coding metasurfaces provide a simple way and new opportunities for manipulating terahertz wave scattering with polarization independence.

引用

页码：230 / 236

页数：7