Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/32243
Title: Controlling the electromagnetic field by indefinite media with extremely strong anisotropy
Authors: Sun, J
Sun, T
Li, B
Chan, HLW 
Zhou, J
Wang, Y 
Issue Date: 2012
Source: Progress in electromagnetics research, 2012, v. 130, p. 513-524 How to cite?
Journal: Progress in Electromagnetics Research 
Abstract: In this work, we show how to manipulate the electromagnetic wave at will by using an indefinite medium with extremely strong anisotropy. The negative element in the indefinite permittivity tensor goes to the negative infinity while the positive element is equal to 1, which stretches the hyperbolic equifrequency contour into a straight line type. The direction of the Poynting vector and the wave vector is aligned by the straight line type equifrequency contour along the orientation of the extremely negative permittivity, thus control the wave propagation. The other permittivity of 1 makes the indefinite medium matched with the air. Moreover, because of the hyperbolic equifrequency contour, evanescent wave can also transmit in the indefinite medium under the propagation mode, implying the possibility of controlling an evanescent wave by this special indefinite medium. Simulations are performed to demonstrate the controlling performance and a potential design to realize such a medium by metamaterial with multilayered metal/dielectric structure. This work may supply a shortcut for those former devices based on the Transformation optics.
URI: http://hdl.handle.net/10397/32243
ISSN: 1070-4698
DOI: 10.2528/PIER12071813
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