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Circular Dichroism Metamirrors with Near-Perfect
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期刊名称： Acs Photonics
作者： Wang, Zuojia,Jia, Hui,Yao, Kan,Cai, Wenshan,Chen, Hongsheng,Liu, Yongmin 年份： 2016年
大连教育培训学校关键词： plasmonics;circular dichroism;polarimetry;symmetry;metamaterials
摘要：In nature, the beetle Chrysina gloriosa derives its iridescence by lectively reflecting left-handed circularly polarized light only. Here, an optical analogue is suggested bad on an ultrathin metamaterial, which is termed circular dichroism metamirror. A general method to design the circular dichroism metasmirror is prented under the framework of Jones calculus. It is analytically shown that the building block of such a metamirror needs to simultaneously break the n-fold rotational (n > 2) symmetry and mirror symmetry. By combining two layers of anisotropic metamaterial structures, a circular dichroism metamirror is designed in the mid-infrared region, which shows perfect reflectance fo
r left-handed circularly polarized light without reversing its handedness, while it almost completely absorbs right-handed 绅士的风度
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