Invisibility cloak without singularity

被引：106

作者：

Jiang, Wei Xiang ^{[1
]}

Cui, Tie Jun ^{[1
]}

Yang, Xin Mi ^{[1
]}

Cheng, Qiang ^{[1
]}

Liu, Ruopeng ^{[2
]}

Smith, David R. ^{[2
]}

机构：

[1] Southeast Univ, Dept Radio Engn, Inst Target Characterist & Identificat, State Key Lab Millimeter Waves, Nanjing 210096, Peoples R China

[2] Duke Univ, Dept Elect & Comp Engn, Durham, NC 27708 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 19期

基金：

美国国家科学基金会;

关键词：

finite element analysis; light polarisation; light reflection; metamaterials; permeability; permittivity;

D O I：

10.1063/1.3026532

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An elliptical invisible cloak is proposed using a coordinate transformation in the elliptical-cylindrical coordinate system, which crushes the cloaked object to a line segment instead of a point. The elliptical cloak is reduced to a nearly circular cloak if the elliptical focus becomes very small. The advantage of the proposed invisibility cloak is that none of the parameters is singular and the changing range of all parameters is relatively small.

引用

页数：3

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