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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 8 — Apr. 13, 2009
  • pp: 6591–6599

Invisibility cloaks for toroids

Yu You, George W. Kattawar, and Ping Yang  »View Author Affiliations


Optics Express, Vol. 17, Issue 8, pp. 6591-6599 (2009)
http://dx.doi.org/10.1364/OE.17.006591


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Abstract

The material properties of toroidal invisibility cloaks are derived based on the coordinate transformation method. The permittivity and permeability tensors for toroidal cloaks are substantially different from those for spherical cloaks, but quite similar to those for 2D cylindrical cloaks because a singularity is involved at the inner boundary in both the cases. The cloaking effect is confirmed by the electric field distribution in the vicinity of toroidal cloaks simulated from the generalized discrete-dipole approximation (DDA) method. This study extends the concept of electromagnetic cloaking of arbitrarily-shaped objects to a complex geometry.

© 2009 Optical Society of America

OCIS Codes
(160.1190) Materials : Anisotropic optical materials
(160.3918) Materials : Metamaterials
(260.2710) Physical optics : Inhomogeneous optical media

ToC Category:
Physical Optics

History
Original Manuscript: February 25, 2009
Revised Manuscript: March 30, 2009
Manuscript Accepted: April 2, 2009
Published: April 6, 2009

Citation
Yu You, George W. Kattawar, and Ping Yang, "Invisibility cloaks for toroids," Opt. Express 17, 6591-6599 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-8-6591


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