Metallic helix array as a broadband wave plate
Optics
2015-05-28 v1
Abstract
This study proposes that a metallic helix array can operate as a highly-transparent broadband wave plate in propagation directions perpendicular to the axis of helices. The functionality arises from a special property of the helix array, namely that the eigenstates of elliptically right-handed and left-handed polarization are dominated by Bragg scattering and local resonance respectively, and can be modulated separately with nearly fixed difference between their wavevectors in a wide frequency range. The wave plate functionality is theoretically and experimentally demonstrated by the transformation of polarized states in a wide frequency range.
Cite
@article{arxiv.1105.6263,
title = {Metallic helix array as a broadband wave plate},
author = {Chao Wu and Hongqiang Li and Xing Yu and Fang Li and Hong Chen and C. T. Chan},
journal= {arXiv preprint arXiv:1105.6263},
year = {2015}
}