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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 4 — Feb. 15, 2010
  • pp: 3917–3918

Invisible cloak design with controlled constitutive parameters and arbitrary shaped boundaries through Helmholtz's equation: comment

Zheng Chang, Xiaoming Zhou, Jin Hu, and Gengkai Hu  »View Author Affiliations


Optics Express, Vol. 18, Issue 4, pp. 3917-3918 (2010)
http://dx.doi.org/10.1364/OE.18.003917


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Abstract

In a recent paper, Chen et al. [Opt. Express 17, 3581 (2009)] develop an approach to design invisible cloaks with controllable constitutive parameters by adjusting the constant k in the Helmholtz’s equation. In this comment, we discuss the limitation of the free parameter k in designing cloaks. It is found that the real constant k can be chosen only as limited values in order to avoid the singular material parameters.

© 2010 OSA

OCIS Codes
(160.1190) Materials : Anisotropic optical materials
(230.0230) Optical devices : Optical devices
(230.3205) Optical devices : Invisibility cloaks

ToC Category:
Physical Optics

History
Original Manuscript: July 28, 2009
Revised Manuscript: August 25, 2009
Manuscript Accepted: August 28, 2009
Published: February 11, 2010

Citation
Zheng Chang, Xiaoming Zhou, Jin Hu, and Gengkai Hu, "Invisible cloak design with controlled constitutive parameters and arbitrary shaped boundaries through Helmholtz's equation: comment," Opt. Express 18, 3917-3918 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-4-3917


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