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Negative-Index Refraction in a Lamellar Composite with Alternating Single Negative Layers

Z. G. Dong·S. N. Zhu·H. Liu
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Abstract

Negative-index refraction is achieved in a lamellar composite with epsilon-negative (ENG) and mu-negative (MNG) materials stacked alternatively. Based on the effective medium approximation, simultaneously negative effective permittivity and permeability of such a lamellar composite are obtained theoretically and further proven by full-wave simulations. Consequently, the famous left-handed metamaterial comprising split ring resonators and wires is interpreted as an analogy of such an ENG-MNG lamellar composite. In addition, beyond the effective medium approximation, the propagating field squeezed near the ENG/MNG interface is demonstrated to be left-handed surface waves with backward phase velocity.

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Z. G. Dong, S. N. Zhu, H. Liu. 2005-08-17. Negative-Index Refraction in a Lamellar Composite with Alternating Single Negative Layers. https://doi.org/10.1088/1009-1963%2F15%2F8%2F023

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