An ultrathin but nearly perfect direct current electric cloak

被引：42

作者：

Jiang, Wei Xiang ^{[1
]}

Luo, Chen Yang ^{[2
]}

Mei, Zhong Lei ^{[3
]}

Cui, Tie Jun ^{[1
]}

机构：

[1] Southeast Univ, State Key Lab Millimeter Waves, Sch Informat Sci & Engn, Nanjing 210096, Jiangsu, Peoples R China

[2] Southeast Univ, Sch Elect Sci & Engn, Nanjing 210096, Jiangsu, Peoples R China

[3] Lanzhou Univ, Sch Informat Sci & Engn, Lanzhou 730000, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 01期

基金：

美国国家科学基金会;

关键词：

GROUND-PLANE CLOAK; MAGNETIC CLOAK; METAMATERIALS; FREQUENCIES;

D O I：

10.1063/1.4774301

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We propose and experimentally demonstrate an ultrathin but nearly perfect dc electric invisibility cloak. In the dc limit, transformation optics reduces to transformation electrostatics. Based on a special coordinate transformation, we derive a nearly perfect dc electric cloak which is composed of homogeneous and anisotropic conducting material. Due to the homogeneity feature, the dc cloak is realized using an ultrathin dc metamaterial with only one-unit-cell thickness, which is the ultra limit for practical artificial materials. Although ultrathin, our experimental results show that the dc cloak has excellent performance with nearly perfect cloaking behaviour. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4774301]

引用

页数：5

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