Show simple item record Urzhumov, Y Landy, N Smith, DR 2012-05-29T21:09:13Z 2012-03-01
dc.identifier.citation Journal of Applied Physics, 2012, 111 (5)
dc.identifier.issn 0021-8979
dc.description.abstract We propose a generalization of the two-dimensional eikonal-limit cloak derived from a conformal transformation to three dimensions. The proposed cloak is a spherical shell composed of only isotropic media; it operates in the transmission mode and requires no mirror or ground plane. Unlike the well-known omnidirectional spherical cloaks, it may reduce visibility of an arbitrary object only for a very limited range of observation angles. In the short-wavelength limit, this cloaking structure restores not only the trajectories of incident rays, but also their phase, which is a necessary ingredient to complete invisibility. Both scalar-wave (acoustic) and transverse vector-wave (electromagnetic) versions are presented. © 2012 American Institute of Physics.
dc.description.sponsorship U.S. Navy through a subcontract with SensorMetrix (Contract No. N68335-11-C- 0011); U.S. Army Research Office through a MURI (Grant No. W911NF-09-1-0539). en_US
dc.language.iso en_US en_US
dc.relation.ispartof Journal of Applied Physics
dc.relation.isversionof 10.1063/1.3691242
dc.title Isotropic-medium three-dimensional cloaks for acoustic and electromagnetic waves
dc.type Journal Article
duke.description.endpage 053105-7 en_US
duke.description.startpage 053105 en_US
duke.description.volume 111 en_US
dc.relation.journal Journal of Applied Physics
pubs.issue 5
pubs.organisational-group /Duke
pubs.organisational-group /Duke/Pratt School of Engineering
pubs.organisational-group /Duke/Pratt School of Engineering/Electrical and Computer Engineering
pubs.publication-status Published
pubs.volume 111

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