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Applied Physics Letters / Volume 102 / Issue 1 / INTERDISCIPLINARY AND GENERAL PHYSICS

Appl. Phys. Lett. 102, 014102 (2013); http://dx.doi.org/10.1063/1.4774301 (5 pages)

An ultrathin but nearly perfect direct current electric cloak

Wei Xiang Jiang1, Chen Yang Luo2, Zhong Lei Mei3, and Tie Jun Cui1

1State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing 210096, China
2School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China
3School of Information Science and Engineering, Lanzhou University, Lanzhou 730000, China

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(Received 5 November 2012; accepted 19 December 2012; published online 10 January 2013)

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.

© 2013 American Institute of Physics

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KEYWORDS and PACS

Keywords

anisotropic media, conducting materials, electrostatics, optical metamaterials

PACS

  • 42.70.Nq

    Other nonlinear optical materials; photorefractive and semiconductor materials

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.4774301

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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    References

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