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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 6 — Mar. 12, 2012
  • pp: 6777–6787

Controlling electromagnetic scattering of a cavity by transformation media

Shenyun Wang and Shaobin Liu  »View Author Affiliations


Optics Express, Vol. 20, Issue 6, pp. 6777-6787 (2012)
http://dx.doi.org/10.1364/OE.20.006777


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Abstract

Based on the transformation media theory, we proposed a way to control the scattering of a cavity, or trench, located on a metallic plane. Specifically, we show how is possible to design transformation medium to fill up a cavity with arbitrary cross section, which is capable of enhancing the specularly reflection wave. As the inverse problem, we also address the design of transformation medium coating, which is laid on the metallic plane, to mimic the scattering of the cavity. Based on the effective medium theory, the transformation medium for the case of a polygonal cavity can be realized by oblique layered structures, and each layered structure is consisting of two kinds of isotropic dielectrics, thus leading an ease of practical fabrication.

© 2012 OSA

OCIS Codes
(160.1190) Materials : Anisotropic optical materials
(230.0230) Optical devices : Optical devices

ToC Category:
Physical Optics

History
Original Manuscript: December 22, 2011
Revised Manuscript: February 19, 2012
Manuscript Accepted: March 4, 2012
Published: March 8, 2012

Citation
Shenyun Wang and Shaobin Liu, "Controlling electromagnetic scattering of a cavity by transformation media," Opt. Express 20, 6777-6787 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-6-6777


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