宽带
太赫兹辐射
全向天线
极化(电化学)
材料科学
波长
横截面
激发
电介质
极化子
横向磁场
光电子学
光学
堆积
物理
电信
核磁共振
计算机科学
结构工程
量子力学
工程类
天线(收音机)
物理化学
化学
作者
Yu Qian Ye,Yi Jin,Sailing He
出处
期刊:Journal of The Optical Society of America B-optical Physics
[The Optical Society]
日期:2010-02-19
卷期号:27 (3): 498-498
被引量:492
标识
DOI:10.1364/josab.27.000498
摘要
A nearly omnidirectional THz absorber for both transverse electric (TE) and transverse magnetic (TM) polarizations is proposed. Through the excitation of the magnetic polariton in a metal-dielectric layer, the incident light is perfectly absorbed in a thin thickness that is about 25 times smaller than the resonance wavelength. By simply stacking several such structural layers with different geometrical dimensions, the bandwidth of this strong absorption can be effectively enhanced due to the hybridization of magnetic polaritons in different layers.
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