Construction of Chiral Metamaterial with a Helix Array

2011/07/25 by Xiang Xiong, Xiaochun Chen, Xiao-Chun Chen +18
Engineering · Materials Science · Physics and Astronomy · #Advanced Antenna and Metasurface Technologies #Electromagnetic Scattering and Analysis #Metamaterials and Metasurfaces Applications #physics.optics

paper · pdf · doi:10.48550/arxiv.1107.4994

14pages, 4 figures

arxiv created 2011/07/25 · arxiv updated 2011/07/26

Abstract

Here we report the designing of chiral metamaterial with metallic helix array. The effective electric and magnetic dipoles, which originate from the induced surface electric current upon illumination of incident light, are collinear at the resonant frequency. Consequently, for the circularly polarized incident light, negative refractive index is realized. Our design provides a unique approach to tune the optical properties by assembling helices, and demonstrates a different approach in exploring three- dimensional chiral metamaterial.

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