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. 2008 May;77(5 Pt 2):056609.
doi: 10.1103/PhysRevE.77.056609. Epub 2008 May 29.

Negative Index of Refraction in Metallic Metamaterial Comprising Split-Ring Resonators

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Negative Index of Refraction in Metallic Metamaterial Comprising Split-Ring Resonators

Zheng-Gao Dong et al. Phys Rev E Stat Nonlin Soft Matter Phys. .

Abstract

We numerically investigate the negative index of refraction in a metamaterial composed of metallic split-ring resonators, which exhibits simultaneously negative permittivity and permeability without resorting to additional metallic wires. It is confirmed that, in the left-handed band, negative permittivity is generated in analogy to the cut-wire metamaterial and negative permeability comes from the antisymmetric resonant mode, which occurs at a frequency band about 3 times higher than the fundamental magnetic resonance proposed by Pendry [IEEE Trans. Microwave Theory Tech. 47, 2075 (1999)].

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