Negative refractive index due to chirality

2009/03/31 by Jiangfeng Zhou, Jianfeng Dong, Thomas Koschny +3 · 2 citations
Engineering · Materials Science · Physics and Astronomy · #Advanced Antenna and Metasurface Technologies #Liquid Crystal Research Advancements #Metamaterials and Metasurfaces Applications #physics.optics

paper · pdf · doi:10.1103/physrevb.79.121104

published as Phys. Rev. B 79, 121104(R) (2009)

openalex publication_date 2009/03/31 · arxiv created 2009/07/06 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04

Abstract

We demonstrate experimentally and numerically that metamaterials based on bilayer cross wires give giant optical activity, circular dichroism, and negative refractive index. The presented chiral design offers a much simpler geometry and more efficient way to realize negative refractive index at any frequency. We also developed a retrieval procedure for chiral materials which works successfully for circularly polarized waves.

Citations

• Classical Electrodynamics

Cited by

• Experimental evidence of giant pure optical activity in a metasurface based on a complementary twisted cross configuration
• Comparison of chiral metamaterial designs for repulsive Casimir force

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