Graphene Based Controllable Broadband Terahertz Metamaterial Absorber with Transmission Band

被引：37

作者：

Zhou, Qihui ^{[1
]}

Zha, Song ^{[1
]}

Liu, Peiguo ^{[1
]}

Liu, Chenxi ^{[1
]}

Bian, Li-an ^{[1
,2
]}

Zhang, Jihong ^{[1
]}

Liu, Hanqing ^{[1
]}

Ding, Liang ^{[1
]}

机构：

[1] Natl Univ Def Technol, Coll Elect Sci, Changsha 410073, Hunan, Peoples R China

[2] Changsha Univ Sci & Technol, Sch Phys & Elect Sci, Changsha 410114, Hunan, Peoples R China

来源：

MATERIALS | 2018年 / 11卷 / 12期

基金：

中国国家自然科学基金;

关键词：

metamaterial absorber; graphene; broadband absorption; passband; ABSORPTION; LAYER;

D O I：

10.3390/ma11122409

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A graphene-based controllable broadband terahertz metamaterial absorber with transmission band is presented in this paper. It consists of a graphene-SiO2-frequency selective surface (FSS) sandwich structure. The sinusoidal graphene layer supports continuous plasmonic resonances, forming a broad electric-tuning absorbing band. Bandpass FSS constructs a transmission window outside the absorbing band. The simulation results indicate that the absorption from 0.5 THz to 1 THz can be tuned continuously from 0.4 to 0.9 with angle and polarization independence. A transparent window peaking at 1.65 THz maintains high transmittance over 0.7. The metamaterial absorber has potential applications for detection, stealth, filtering, and electromagnetic compatibility.

引用

页数：8

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