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Importance of the singular constitutive parameters of cylindrical cloaks : illustration on the anticloak concept

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Importance of the singular constitutive parameters of cylindrical cloaks : illustration on the anticloak concept

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Title: Importance of the singular constitutive parameters of cylindrical cloaks : illustration on the anticloak concept
Author: Blanchard, Cédric; Zhang, Baile; Wu, Bae-Ian; Portí, Jorge Andrés; Chen, Hongsheng; Morente, Juan Antonio; Salinas, Alfonso
Copyright year: 2009
Abstract: Two-dimensional electromagnetic cloaking devices with infinite optic constants at the inner boundary are investigated. Numerical simulations of this class of ideal cloak, performed with the transmission line modeling method, confirm the fundamental importance of such extreme values in the efficiency of the cloak in some situations. This is illustrated by using the concept of the anticloak, which was shown to be capable of defeating the non-ideal cloak. We numerically show that the presence of a layer with extreme constitutive parameters renders the anticloak unable to produce its effect. Furthermore, we propose a simple theoretical model that leads to the same conclusion if the cloak is slightly dissipative.
Subject: DRNTU::Science::Physics::Optics and light
Type: Journal Article
Series/ Journal Title: Journal of the optical society of America B
School: School of Physical and Mathematical Sciences
Rights: © 2009 OSA. This paper was published in Journal of the Optical Society of America B and is made available as an electronic reprint (preprint) with permission of Optical Society of America. The paper can be found at: [DOI: http://dx.doi.org/10.1364/JOSAB.26.001831]. 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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