Dual-band switchable terahertz metamaterial absorber based on metal nanostructure

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成果类型：

期刊论文

作者：

Zhang, Yubin;Cen, Chunlian;Liang, Cuiping;Yi, Zao*;Chen, Xifang;...

通讯作者：

Yi, Zao;Zhang, Guangfu

作者机构：

[Zhang, Yubin; Li, Meiwen; Chen, Xifang; Yi, Zao; Zhang, GF; Zhou, Zigang; Cen, Chunlian; Liang, Cuiping] Southwest Univ Sci & Technol, Joint Lab Extreme Condit Matter Properties, Mianyang 621010, Sichuan, Peoples R China.

[Zhang, Yubin; Li, Meiwen; Chen, Xifang; Tang, Yongjian; Yi, Zao; Zhou, Zigang; Cen, Chunlian; Liang, Cuiping] Sichuan Civil Mil Integrat Inst, Mianyang 621010, Sichuan, Peoples R China.

[Yi, Yougen] Cent South Univ, Coll Phys & Elect, Changsha 410083, Hunan, Peoples R China.

[Zhang, Guangfu] Hunan City Univ, Sch Commun & Elect Engn, Yiyang 413000, Peoples R China.

通讯机构：

[Yi, Z; Zhang, GF] S

Southwest Univ Sci & Technol, Joint Lab Extreme Condit Matter Properties, Mianyang 621010, Sichuan, Peoples R China.

语种：

英文

关键词：

Dual-band;Broadband;Terahertz;Metamaterials

期刊：

Results in Physics

ISSN：

2211-3797

年：

2019

卷：

页码：

102422

DOI：

10.1016/j.rinp.2019.102422

基金类别：

National Natural Science Foundation of China (NNSFC)National Natural Science Foundation of China (NSFC) [51606158]; Natural Science Foundation of Hunan ProvinceNatural Science Foundation of Hunan Province [2018JJ2019]; Research Foundation of Education Bureau of Hunan Province [16B048]

机构署名：

本校为其他机构

院系归属：

信息与电子工程学院

摘要：

In this paper, a tunable terahertz metamaterial absorber with two bands is proposed. It is composed of Au reflector, dielectric layer and periodic array of Au. By adjusting different materials and optimizing parameters, it can achieve the characteristics of both broadband and single peak absorption. In the range of 3.5–4.1 terahertz, the broadband absorption rate can reach over 90%, the relative bandwidth ratio is 17%, and the absorption peak at 7.15 THz can reach 98.9%. The coupling mechanism of broadband and unimodal absorption is studied by...

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Dual-band switchable terahertz metamaterial absorber based on metal nanostructure

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