Experimental demonstration of terahertz metamaterial absorbers with a broad and flat high absorption band
Experimental demonstration of terahertz metamaterial absorbers with a broad and flat high absorption band
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具有宽而平坦高吸收带的太赫兹超材料吸收体的实验演示
DOI：
10.1364/ol.37.000154
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发表时间：
2012-01-15
期刊：
影响因子：
3.6
通讯作者：
Chen, Hou-Tong
中科院分区：
文献类型：
--
作者：
Huang, Li;Chowdhury, Dibakar Roy;Chen, Hou-Tong
我们提出的设计，数值模拟和实验测量的太赫兹超材料吸收器具有广泛的和平坦的吸收顶部在一个很宽的入射角范围内的横向电或横向磁极化取决于入射方向。超材料吸收体单元由两组以不同但接近的频率谐振的结构组成。整体吸收光谱是各个分量的叠加，并且在显著带宽上在顶部变得平坦。实验结果与数值模拟吻合良好。(C)2012美国光学学会
We present the design, numerical simulations and experimental measurements of terahertz metamaterial absorbers with a broad and flat absorption top over a wide incidence angle range for either transverse electric or transverse magnetic polarization depending on the incident direction. The metamaterial absorber unit cell consists of two sets of structures resonating at different but close frequencies. The overall absorption spectrum is the superposition of individual components and becomes flat at the top over a significant bandwidth. The experimental results are in excellent agreement with numerical simulations. (C) 2012 Optical Society of America