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

Zheng Chang; Xiaoming Zhou; Jin Hu; Gengkai Hu

doi:10.1364/OE.18.003917

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

Zheng Chang^*, Xiaoming Zhou, Jin Hu, Gengkai Hu

^*Corresponding author for this work

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

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.

Original language	English
Pages (from-to)	3917-3918
Number of pages	2
Journal	Optics Express
Volume	18
Issue number	4
DOIs	https://doi.org/10.1364/OE.18.003917
Publication status	Published - 15 Feb 2010

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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.",

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AU - Zhou, Xiaoming

AU - Hu, Jin

AU - Hu, Gengkai

PY - 2010/2/15

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AB - 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.

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

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