Lateral shift makes a ground-plane cloak detectable

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Lateral shift makes a ground-plane cloak detectable

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Title: Lateral shift makes a ground-plane cloak detectable
Author: Zhang, Baile; Chan, Tucker; Wu, Bae-Ian
Copyright year: 2010
Abstract: We examine the effectiveness of the ground-plane invisibility cloak generated from quasiconformal mapping of electromagnetic space. This cloak without anisotropy will generally lead to a lateral shift of the scattered wave, whose value is comparable to the height of the cloaked object, making the object detectable. This can be explained by the fact that the corresponding virtual space is thinner and wider than it should be. Ray tracing on a concrete model shows that, for a bump with a maximum height of 0.2 units to be hidden, the lateral shift of a ray with 45° incidence is around 0.15 units.
Subject: DRNTU::Engineering::Aeronautical engineering::Aircraft.
Type: Journal Article
Series/ Journal Title: Physical review letters
School: School of Physical and Mathematical Sciences
Rights: © 2010 The American Physical Society. This paper was published in Physical Review Letters 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/PhysRevLett.104.233903.  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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