Lateral shift makes a ground-plane cloak detectable

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 ob...

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Main Authors:	Zhang, Baile, Chan, Tucker, Wu, Bae-Ian
Other Authors:	School of Physical and Mathematical Sciences
Format:	Article
Language:	English
Published:	2012
Subjects:	DRNTU::Engineering::Aeronautical engineering::Aircraft
Online Access:	https://hdl.handle.net/10356/95032 http://hdl.handle.net/10220/8739
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Institution:	Nanyang Technological University
Language:	English

id	sg-ntu-dr.10356-95032
record_format	dspace
spelling	sg-ntu-dr.10356-950322023-02-28T19:38:48Z Lateral shift makes a ground-plane cloak detectable Zhang, Baile Chan, Tucker Wu, Bae-Ian School of Physical and Mathematical Sciences DRNTU::Engineering::Aeronautical engineering::Aircraft 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. Published version 2012-10-09T08:10:43Z 2019-12-06T19:06:54Z 2012-10-09T08:10:43Z 2019-12-06T19:06:54Z 2010 2010 Journal Article Zhang, B., Chan, T., & Wu, B. I. (2010). Lateral shift makes a ground-plane cloak detectable. Physical Review Letters, 104(23). https://hdl.handle.net/10356/95032 http://hdl.handle.net/10220/8739 10.1103/PhysRevLett.104.233903 en Physical review letters © 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. application/pdf
institution	Nanyang Technological University
building	NTU Library
continent	Asia
country	Singapore Singapore
content_provider	NTU Library
collection	DR-NTU
language	English
topic	DRNTU::Engineering::Aeronautical engineering::Aircraft
spellingShingle	DRNTU::Engineering::Aeronautical engineering::Aircraft Zhang, Baile Chan, Tucker Wu, Bae-Ian Lateral shift makes a ground-plane cloak detectable
description	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.
author2	School of Physical and Mathematical Sciences
author_facet	School of Physical and Mathematical Sciences Zhang, Baile Chan, Tucker Wu, Bae-Ian
format	Article
author	Zhang, Baile Chan, Tucker Wu, Bae-Ian
author_sort	Zhang, Baile
title	Lateral shift makes a ground-plane cloak detectable
title_short	Lateral shift makes a ground-plane cloak detectable
title_full	Lateral shift makes a ground-plane cloak detectable
title_fullStr	Lateral shift makes a ground-plane cloak detectable
title_full_unstemmed	Lateral shift makes a ground-plane cloak detectable
title_sort	lateral shift makes a ground-plane cloak detectable
publishDate	2012
url	https://hdl.handle.net/10356/95032 http://hdl.handle.net/10220/8739
_version_	1759855990471131136

Lateral shift makes a ground-plane cloak detectable

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