Triple-band terahertz metamaterial absorber: Design, experiment, and physical interpretation

被引:420
作者
Shen, Xiaopeng [1 ]
Yang, Yan [1 ]
Zang, Yuanzhang [2 ,3 ]
Gu, Jianqiang [2 ,3 ]
Han, Jiaguang [2 ,3 ]
Zhang, Weili [2 ,3 ,4 ]
Cui, Tie Jun [1 ]
机构
[1] Southeast Univ, State Key Lab Millimeter Waves, Nanjing 210096, Jiangsu, Peoples R China
[2] Tianjin Univ, Ctr Terahertz Waves, Tianjin 300072, Peoples R China
[3] Tianjin Univ, Coll Precis Instrument & Optoelect Engn, Tianjin 300072, Peoples R China
[4] Oklahoma State Univ, Sch Elect & Comp Engn, Stillwater, OK 74078 USA
基金
美国国家科学基金会;
关键词
FREQUENCIES;
D O I
10.1063/1.4757879
中图分类号
O59 [应用物理学];
学科分类号
摘要
We demonstrate the design, characterization, and interference-theory interpretation of a terahertz triple-band metamaterial absorber (MA). The experiments show that the fabricated MA has three distinctive absorption peaks at 0.5, 1.03, and 1.71 THz with absorption rates of 96.4%, 96.3%, and 96.7%, respectively. We use the multi-reflection interference theory to investigate the physical insight of the proposed triple-band terahertz MA, which provides a design guideline for MA of such type. The theoretical predictions of the interference model have excellent agreements with experimental results. The designed multiband absorber is easy to manufacture and insensitive to incident polarizations with high absorption, which is favorable for various applications. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4757879]
引用
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页数:4
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