Variable group delay in a metamaterial with field-gradient-induced transparency
Optics
2012-02-08 v2
Abstract
We realize variable control of the group delay in an electromagnetically induced transparency-like metamaterial. Its unit cell is designed to have a bright mode and a dark mode. The coupling strength between these two modes is determined by the electromagnetic field gradient. In this metamaterial with field-gradient-induced transparency, the group delay at the transparency frequency can be varied by varying the incident angle of the electromagnetic plane waves. By tilting a single layer of the metamaterial, the group delay of a microwave pulse can be varied between 0.50 and 1.85 ns.
Cite
@article{arxiv.1109.3048,
title = {Variable group delay in a metamaterial with field-gradient-induced transparency},
author = {Yasuhiro Tamayama and Toshihiro Nakanishi and Masao Kitano},
journal= {arXiv preprint arXiv:1109.3048},
year = {2012}
}
Comments
5 pages, 6 figures