A wide-angle dual-band polarization-sensitive absorber with a multilayer grating

被引：7
|
作者：
Liao, Yan-Lin [1 ]
Zhao, Yan [2 ]
机构：
[1] Anhui Univ, Minist Educ, Key Lab Optoelect Informat Acquisit & Manipulat, Hefei 230039, Peoples R China
[2] Anhui Med Univ, Dept Phys, Hefei 230032, Peoples R China
来源：
MODERN PHYSICS LETTERS B | 2014年 / 28卷 / 14期
关键词：
Plasmonics; subwavelength structures; nanostructures; polarization-selective devices; METAMATERIAL ABSORBER;
D O I：
10.1142/S0217984914501097
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this paper, a wide-angle polarization-sensitive dual-band absorber at infrared wavelengths with a multilayer grating is reported. The simulation results show that the absorber has two absorption peaks at wavelengths lambda = 1.365 mu m and lambda = 3.035 mu m with the absorption magnitudes more than 0.97 and 0.99 for TM polarization (electric field perpendicular to the strips), respectively. And this absorber reflects almost all TE polarization (electric field parallel to the strips) light. The dual-band absorption peaks can be tuned by varying the width of the strips, and the absorption magnitudes are more than 0.9 for the dual-band absorption peaks for angles up to 70 degrees.
引用
收藏
页数：7
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