Arbitrary control of electromagnetic flux in inhomogeneous anisotropic media with near-zero index

We propose a method to control electromagnetic flux in an almost arbitrary way in wavelength and subwavelength scales. The capability of subwavelength flux control is enabled by the evanescent waves induced in a class of inhomogeneous anisotropic media with a near-zero permittivity component. By des...

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Bibliographic Details
Published inPhysical review letters Vol. 112; no. 7; p. 073903
Main Authors Luo, Jie, Lu, WeiXin, Hang, ZhiHong, Chen, HuanYang, Hou, Bo, Lai, Yun, Chan, C T
Format Journal Article
LanguageEnglish
Published United States 21.02.2014
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Summary:We propose a method to control electromagnetic flux in an almost arbitrary way in wavelength and subwavelength scales. The capability of subwavelength flux control is enabled by the evanescent waves induced in a class of inhomogeneous anisotropic media with a near-zero permittivity component. By designing the spatial profile of the other permittivity component in such inhomogeneous media, the flow and distribution of energy flux can be conveniently manipulated. This method provides another approach to efficiently control electromagnetic flux in nonmagnetic media.
ISSN:1079-7114
DOI:10.1103/PhysRevLett.112.073903