Highly tunable optical activity in planar achiral terahertz metamaterials
arXiv:1006.0322 · doi:10.1364/OE.18.013425
Abstract
Using terahertz time domain spectroscopy we demonstrate tunable polarization rotation and circular dichroism in intrinsically nonchiral planar terahertz metamaterials without twofold rotational symmetry. The observed effect is due to extrinsic chirality arising from the mutual orientation of the metamaterial plane and the propagation direction of the incident terahertz wave.
6 pages, 4 figures
References in corpus (6)
- Circular conversion dichroism in planar chiral metamaterials
- 3D-Chiral Metamaterial Showing Artificial Magnetic Response and Negative Refraction
- Analogue of Electromagnetically Induced Transparency in a Terahertz Metamaterial
- Terahertz metamaterial with asymmetric transmission
- Optical Activity of Planar Achiral Metamaterials
- Random terahertz metamaterials
Cited by in corpus (8)
- Strong influence of packing density in terahertz metamaterials
- Metamaterial Polarization Converter Analysis: Limits of Performance
- Coherent control of optical activity and optical anisotropy of thin metamaterials
- Creating double negative index materials using the Babinet principle with one metasurface
- Substrate-Induced Chirality in an Individual Nanostructure
- Materiatronics: Modular analysis of arbitrary meta-atoms
- Mirror-Symmetric Heterogeneous Resonant Nanostructures: Extrinsic Chirality and Spin-Polarized Scattering
- Broadband angle- and permittivity-insensitive nondispersive optical activity based on chiral metamaterials