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Route to low-scattering cylindrical cloaks with finite permittivity and permeability.

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Route to low-scattering cylindrical cloaks with finite permittivity and permeability.

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Title: Route to low-scattering cylindrical cloaks with finite permittivity and permeability.
Author: Xi, Sheng.; Chen, Hongsheng.; Zhang, Baile.; Wu, Bae-Ian.; Kong, Jin Au.
Copyright year: 2009
Abstract: The method of coordinate transformation offers a way to realize perfect cloaks but provides less ability to characterize the performance of a multilayered cloak in practice. Here, we propose an analytical model to predict the performance of a multilayered cylindrical cloak, based on which, the cloak in practice can be optimized to diminish the intrinsic scatterings caused by discretization and simplification. Extremely low scattering or “quasiperfect invisibility” can be achieved with only a few layers of anisotropic metamaterials without following the transformation method. Meanwhile, the permittivity and permeability parameters of the layers are relatively small, which is a remarkable advantage of our approach.
Subject: DRNTU::Science::Mathematics.
Type: Journal Article
Series/ Journal Title: Physical review B
School: School of Physical and Mathematical Sciences
Rights: © 2009 The American Physical Society. This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of The American Physical Society. The paper can be found at the following official DOI: http://dx.doi.org/10.1103/PhysRevB.79.155122.  One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Version: Published version

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