Optimized invisibility cloaks from the Logarithm conformal mapping

被引：0
|
作者：
Zhu, Chunhui [1 ]
Liu, Lijun [2 ]
Song, Zhengyong [1 ]
Liu, Qing Huo [3 ]
机构：
[1] Xiamen Univ, Dept Elect Sci, Xiamen 361005, Peoples R China
[2] Xiamen Univ, Dept Automat, Xiamen 361005, Peoples R China
[3] Duke Univ, Dept Elect & Comp Engn, Durham, NC 27708 USA
来源：
SCIENTIFIC REPORTS | 2016年 / 6卷
基金：
中国国家自然科学基金;
关键词：
TRANSFORMATION-OPTICS;
D O I：
10.1038/srep38443
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Invisibility cloaks designed from the coordinate transformation method have attracted increasing interest recently. Conformal transformation optics scheme leads to cloaks that possess isotopic media, thus provides a prospective way to facilitate easier realization. Reducing the maximum value of the refractive index required by the cloaks is very important in practical imple-mentation. This letter studies on how the parameters in the logarithm conformal mapping control the cloaking effect. The optimized invisibility cloaks are designed. The maximum values of the refractive index required from the first kind and the second kind of logarithm conformal mappings are reduced to 9.779 and 12.936, respectively.
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页数：5
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