Invisible cloak design with controlled constitutive parameters and arbitrary shaped boundaries through Helmholtz's equation: comment
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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References
- J. Hu, X. Zhou, and G. Hu, “Design method for electromagnetic cloak with arbitrary shapes based on Laplace’s equation,” Opt. Express 17(3), 1308–1320 (2009). [CrossRef] [PubMed]
- J. B. Pendry, D. Schurig, and D. R. Smith, “Controlling electromagnetic fields,” Science 312(5781), 1780–1782 (2006). [CrossRef] [PubMed]
- X. Chen, Y. Fu, and N. Yuan, “Invisible cloak design with controlled constitutive parameters and arbitrary shaped boundaries through Helmholtz’s equation,” Opt. Express 17(5), 3581–3586 (2009). [CrossRef] [PubMed]
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