Flexible manipulation of terahertz wave reflection using polarization insensitive coding metasurfaces

被引：26

作者：

Li Jiu-sheng ^{[1
]}

Zhao Ze-jiang ^{[1
]}

Yao Jian-quan ^{[2
]}

机构：

[1] China Jiliang Univ, Ctr THz Res, Hangzhou 310018, Zhejiang, Peoples R China

[2] Tianjin Univ, Coll Precis Instrument & Optoelect Engn, Tianjin 300072, Peoples R China

来源：

OPTICS EXPRESS | 2017年 / 25卷 / 24期

基金：

中国国家自然科学基金;

关键词：

BROAD-BAND; NEGATIVE REFRACTION; PHASE; METAMATERIALS; FREQUENCIES; SCATTERING; RANGE;

D O I：

10.1364/OE.25.029983

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In order to extend to 3-bit encoding, we propose notched-wheel structures as polarization insensitive coding metasurfaces to control terahertz wave reflection and suppress backward scattering. By using a coding sequence of "00110011." along x-axis direction and 16 x 16 random coding sequence, we investigate the polarization insensitive properties of the coding metasurfaces. By designing the coding sequences of the basic coding elements, the terahertz wave reflection can be flexibly manipulated. Additionally, radar cross section (RCS) reduction in the backward direction is less than -10dB in a wide band. The present approach can offer application for novel terahertz manipulation devices. (C) 2017 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：29983 / 29992

页数：10

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