Chiral metamaterials with negative refractive index based on four "U" split ring resonators

Abstract

A uniaxial chiral metamaterial is constructed by double-layered four "U" split ring resonators mutually twisted by 90 degrees. It shows a giant optical activity and circular dichroism. The retrieval results reveal that a negative refractive index is realized for circularly polarized waves due to the large chirality. The experimental results are in good agreement with the numerical results.

4 pages, 4 figures, Published as cover on APL

References in corpus (8)

• Magnetic metamaterials at telecommunication and visible frequencies
• 3D-Chiral Metamaterial Showing Artificial Magnetic Response and Negative Refraction
• Giant gyrotropy due to electromagnetic coupling
• Negative refractive index due to chirality
• Electric and magnetic dipole coupling in near-infrared split ring metamaterial arrays
• Nonplanar Chiral Metamaterials with Negative Index
• Construction of Chiral Metamaterial with U-Shaped Resonator Assembly
• Comparison of Chiral Metamaterial Designs for Repulsive Casimir Force

Cited by in corpus (4)

• Conjugated gammadion chiral metamaterial with uniaxial optical activity and negative refractive index
• Ubiquity of optical activity in planar metamaterial scatterers
• Polarization Control by Using Anisotropic 3D Chiral Structures
• Separable metamaterials: analytical ab-initio homogenization and chirality