Highly tunable optical activity in planar achiral terahertz metamaterials
Optics
2010-09-03 v1 Materials Science
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.
Keywords
Cite
@article{arxiv.1006.0322,
title = {Highly tunable optical activity in planar achiral terahertz metamaterials},
author = {Ranjan Singh and Eric Plum and Weili Zhang and Nikolay I. Zheludev},
journal= {arXiv preprint arXiv:1006.0322},
year = {2010}
}
Comments
6 pages, 4 figures