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Isotropic-medium three-dimensional cloaks for acoustic and electromagnetic waves

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Date
2012-03-01
Authors
Urzhumov, Y
Landy, N
Smith, DR
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Abstract
We propose a generalization of the two-dimensional eikonal-limit cloak derived from a conformal transformation to three dimensions. The proposed cloak is a spherical shell composed of only isotropic media; it operates in the transmission mode and requires no mirror or ground plane. Unlike the well-known omnidirectional spherical cloaks, it may reduce visibility of an arbitrary object only for a very limited range of observation angles. In the short-wavelength limit, this cloaking structure restores not only the trajectories of incident rays, but also their phase, which is a necessary ingredient to complete invisibility. Both scalar-wave (acoustic) and transverse vector-wave (electromagnetic) versions are presented. © 2012 American Institute of Physics.
Type
Journal article
Permalink
https://hdl.handle.net/10161/5721
Published Version (Please cite this version)
10.1063/1.3691242
Publication Info
Urzhumov, Y; Landy, N; & Smith, DR (2012). Isotropic-medium three-dimensional cloaks for acoustic and electromagnetic waves. Journal of Applied Physics, 111(5). pp. 053105. 10.1063/1.3691242. Retrieved from https://hdl.handle.net/10161/5721.
This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.
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Scholars@Duke

Smith

David R. Smith

James B. Duke Distinguished Professor of Electrical and Computer Engineering
Dr. David R. Smith is currently the James B. Duke Professor of Electrical and Computer Engineering Department at Duke University. He is also Director of the Center for Metamaterials and Integrated Plasmonics at Duke and holds the positions of Adjunct Associate Professor in the Physics Department at the University of California, San Diego, and Visiting Professor of Physics at Imperial College, London. Dr. Smith received his Ph.D. in 1994 in Physics from the University of California, San D
Urzhumov

Yaroslav A. Urzhumov

Adjunct Assistant Professor in the Department of Electrical and Computer Engineering
<!--[if gte mso 9]> <![endif]--> <!--[if gte mso 9]> <![endif]-->Dr. Urzhumov is Adjunct Assistant Professor of ECE at Duke University, and also a Technologist at the Metamaterials Commercialization Center of Intellectual Ventures. Previously a research faculty at Duke, he works on applied and theoretical aspects of metama
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