Electromagnetic interaction of arbitrary radial-dependent anisotropic spheres and improved invisibility for nonlinear-transformation-based cloaks

被引：53

作者：

Qiu, Cheng-Wei ^{[1
,2
]}

Novitsky, Andrey ^{[3
]}

Ma, Hua ^{[4
]}

Qu, Shaobo ^{[4
]}

机构：

[1] MIT, Elect Res Lab, Cambridge, MA 02139 USA

[2] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 119620, Singapore

[3] Belarusian State Univ, Dept Theoret Phys, Minsk 220050, BELARUS

[4] Air Force Univ Engn, Coll Sci, Xian 710051, Peoples R China

来源：

PHYSICAL REVIEW E | 2009年 / 80卷 / 01期

关键词：

SCATTERING; METAMATERIAL; PARTICLES;

D O I：

10.1103/PhysRevE.80.016604

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

An analytical method of electromagnetic wave interactions with a general radially anisotropic cloak is established. It is able to deal with arbitrary parameters [epsilon(r)(r), mu(r)(r), epsilon(t)(r), and mu(t)(r)] of a radially anisotropic inhomogeneous shell. The general cloaking condition is proposed from the wave relations, in contrast to the method of transformation optics. Spherical metamaterial cloaks with improved invisibility performance are achieved with optimal nonlinearity in transformation and core-shell ratio.

引用

页数：9