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Conformal cubical 3D transformation-based metamaterial invisibility cloak |
JOSA A, Vol. 30, Issue 1, pp. 7-12 (2013)
http://dx.doi.org/10.1364/JOSAA.30.000007
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Abstract
A conformal cubical transformation-based metamaterial invisibility cloak is presented and verified, in the near and the far field, by a rigorous full-wave numerical technique based on a higher-order, large-domain finite element method, employing large anisotropic, continuously inhomogeneous generalized hexahedral finite elements, with no need for discretization of the permittivity and permeability profiles of the cloak. The analysis requires about 30 times fewer unknowns than with commercial software. To our knowledge, this is the first conformal cubical cloak and the first full-wave computational characterization of such a structure with sharp edges. The presented methodology can also be used in development of conformal, transformation-based perfectly matched layers.
© 2012 Optical Society of America
OCIS Codes
(000.4430) General : Numerical approximation and analysis
(260.2110) Physical optics : Electromagnetic optics
(230.3205) Optical devices : Invisibility cloaks
(290.5839) Scattering : Scattering, invisibility
ToC Category:
Optical Devices
History
Original Manuscript: August 7, 2012
Manuscript Accepted: November 7, 2012
Published: December 7, 2012
Citation
Slobodan V. Savić, Branislav M. Notaroš, and Milan M. Ilić, "Conformal cubical 3D transformation-based metamaterial invisibility cloak," J. Opt. Soc. Am. A 30, 7-12 (2013)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-30-1-7
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