Enhanced sensing performance by the plasmonic analogue of electromagnetically induced transparency in active metamaterials
Optics
2015-05-20 v1 Materials Science
Abstract
The gain-assisted plasmonic analogue of electromagnetically induced transparency (EIT) in a metallic metamaterial is investigated for the purpose to enhance the sensing performance of the EIT-like plasmonic structure. The structure is composed of three bars in one unit, two of which are parallel to each other (dark quadrupolar element) but perpendicular to the third bar (bright dipolar element), The results show that, in addition to the high sensitivity to the refractive-index fluctuation of the surrounding medium, the figure of merit for such active EIT-like metamaterials can be greatly enhanced, which is attributed to the amplified narrow transparency peak.
Keywords
Cite
@article{arxiv.1101.0738,
title = {Enhanced sensing performance by the plasmonic analogue of electromagnetically induced transparency in active metamaterials},
author = {Zheng-Gao Dong and Hui Liu and Jing-Xiao Cao and Tao Li and Shu-Ming Wang and Shi-Ning Zhu and Xiang Zhang},
journal= {arXiv preprint arXiv:1101.0738},
year = {2015}
}