Numerical Demonstrations of Negative Refraction Properties in a Closed-Ring Pair Metamaterial under Parallel Incidence

Abstract:

In this paper, we investigate numerically the negative refraction properties of a closed-ring pair (CRP) structure metamaterial under parallel incidence. The surface currents and magnetic-field distribution are demonstrated to the physical mechanism of the negative refraction of the CRP. It is found that the electric response is attributed to the plasma oscillation of electrons and resulting in negative permittvity. However, the magnetic response origins from the antsymmetric resonant mode, which is excited by the edges of up and down of the CRP structure. In addition, the electric field distribution based on wedge-shaped and parallelogram-shaped models and the backward wave propagation from the phase changes in the moving picture are shown to further confirm the negative refraction.

• Periodical: Advanced Materials Research (Volume 815)
• Pages: 121-125
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.815.121
• Online since: October 2013
• Authors: Fang Fang
• Keywords: CRP Structure Metamaterial, Negative Refraction, Parallel Incidence

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