Scattering characteristics of nonmagnetic invisibility cloak with minimized scattering

被引：15
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, Shanghai Inst Tech Phys, Natl Lab Infrared Phys, Shanghai 200083, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2011年 / 284卷 / 24期
基金：
中国国家自然科学基金;
关键词：
Transformation optics; Invisibility cloak; Inhomogeneous material; OPTICAL-TRANSFORMATION; ISOTROPIC MATERIALS; SEGMENTATION;
D O I：
10.1016/j.optcom.2011.08.054
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A kind of transformation functions is proposed to realize the nonmagnetic invisibility cloak with minimized scattering on the basis of generalized transformation. By matching the impedance at the outer surface of the cloak, the transformations with two parameters are determined. The good performance of the cloak is indicated by the full wave simulation based on the finite element method. Furthermore, based on the calculation of total scattering cross section, it is shown that the scattering cross section is very sensitive to the different parameters even though the impedance at the exterior boundary matches perfectly with the free space. In addition, from the effective media theory, an alternating layered system composed of two isotropic materials is proposed to realize experimentally the cloak. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：5523 / 5530
页数：8
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