Isotropic-medium three-dimensional cloaks for acoustic and electromagnetic waves
dc.contributor.author | Urzhumov, Y | |
dc.contributor.author | Landy, N | |
dc.contributor.author | Smith, DR | |
dc.date.accessioned | 2012-05-29T21:09:13Z | |
dc.date.issued | 2012-03-01 | |
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). | |
dc.identifier.issn | 0021-8979 | |
dc.identifier.uri | ||
dc.language.iso | en_US | |
dc.publisher | AIP Publishing | |
dc.relation.ispartof | Journal of Applied Physics | |
dc.relation.isversionof | 10.1063/1.3691242 | |
dc.relation.journal | Journal of Applied Physics | |
dc.title | Isotropic-medium three-dimensional cloaks for acoustic and electromagnetic waves | |
dc.type | Journal article | |
duke.description.volume | 111 | |
pubs.begin-page | 053105 | |
pubs.issue | 5 | |
pubs.organisational-group | Duke | |
pubs.organisational-group | Electrical and Computer Engineering | |
pubs.organisational-group | Pratt School of Engineering | |
pubs.publication-status | Published | |
pubs.volume | 111 |
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