Dual-band asymmetric transmission of linear polarization in bilayered chiral metamaterial

被引：137
|
作者：
Shi, Jinhui [1 ,2 ]
Liu, Xingchen [1 ]
Yu, Shengwu [1 ]
Lv, Tingting [1 ]
Zhu, Zheng [1 ]
Ma, Hui Feng [2 ]
Cui, Tie Jun [2 ]
机构：
[1] Harbin Engn Univ, Coll Sci, Key Lab In Fiber Integrated Opt, Minist Educ, Harbin 150001, Peoples R China
[2] Southeast Univ, State Key Lab Millimeter Waves, Nanjing 210096, Jiangsu, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 19期
基金：
美国国家科学基金会; 中国博士后科学基金;
关键词：
OPTICAL-ACTIVITY; PHOTONIC METAMATERIAL; CIRCULAR-DICHROISM;
D O I：
10.1063/1.4805075
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A bilayered chiral metamaterial is proposed and demonstrated to exhibit dual-band asymmetric transmission of linearly polarized electromagnetic waves in two opposite directions. Simulated and measured results show that the bilayered chiral metamaterial can achieve cross-polarization conversion with an efficiency of over 90% for both y- and x-polarized waves. The proposed metasurface can be regarded as an ultrathin polarization-controlled switch that is easily switched on/off by changing a linearly polarized wave to its orthogonal component. (C) 2013 AIP Publishing LLC.
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页数：5
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