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

Author(s)
Qiu, Cheng-Wei; Novitsky, Andrey; Ma, Hua; Qu, Shaobo
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Abstract
An analytical method of electromagnetic wave interactions with a general radially anisotropic cloak is established. It is able to deal with arbitrary parameters [ε[subscript r](r), μ[subscript r](r), ε[subscript t](r), and μ[subscript 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.
Date issued
2009-07
URI
http://hdl.handle.net/1721.1/51339
Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
Journal
Physical Review E
Publisher
American Physical Society
Citation
Qiu, Cheng-Wei et al. “Electromagnetic interaction of arbitrary radial-dependent anisotropic spheres and improved invisibility for nonlinear-transformation-based cloaks.” Physical Review E 80.1 (2009): 016604. (C) 2010 The American Physical Society.
Version: Final published version
ISSN
1550-2376
1539-3755

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