Generalized transformation for nonmagnetic invisibility cloak with minimized scattering

被引：20

作者：

Huang, Lujun ^{[1
]}

Zhou, Daming ^{[1
]}

Wang, Jian ^{[1
]}

Li, Zhifeng ^{[1
]}

Chen, Xiaoshuang ^{[1
]}

Lu, Wei ^{[1
]}

机构：

[1] Chinese Acad Sci, Natl Lab Infrared Phys, Shanghai Inst Tech Phys, Shanghai 200083, Peoples R China

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2011年 / 28卷 / 04期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1364/JOSAB.28.000922

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a generalized transformation for a nonmagnetic invisibility cloak with minimized scattering. In comparison with the previous transformation, it has been demonstrated that the unphysical singularity at the inner boundary and the limitation of the thickness of the cloak shell can be removed by choosing the appropriate transformation function. Furthermore, our generalized transformation is used to design two different nonmagnetic cloaks without considering the unphysical singularity and the limitation of the thickness. Based on the effective medium theory, an alternating layered system composed of two isotropic materials is employed to realize these cloaks. Moreover, through calculating the scattering cross section of the cloak, it is found that such a nonmagnetic cloak can only work in a narrow frequency range. (C) 2011 Optical Society of America

引用

页码：922 / 928

页数：7

共 25 条

[1] Nonmagnetic cloak with minimized scattering [J].