Thin Film Absorbers Based on Plasmonic Phase Resonances
Optics
2010-07-30 v1
Abstract
We demonstrate an efficient double-layer light absorber by exciting plasmonic phase resonances. We show that the addition of grooves can cause mode splitting of the plasmonic waveguide cavity modes and all the new resonant modes exhibit large absorptivity greater than 90%. Some of the generated absorption peaks have wide-angle characteristics. Furthermore, we find that the proposed structure is fairly insensitive to the alignment error between different layers. The proposed plasmonic nano-structure designs may have exciting potential applications in thin film solar cells, thermal emitters, novel infrared detectors, and highly sensitive bio-sensors.
Cite
@article{arxiv.1007.5079,
title = {Thin Film Absorbers Based on Plasmonic Phase Resonances},
author = {Yanxia Cui and Kin Hung Fung and Jun Xu and Sailing He and Nicholas X. Fang},
journal= {arXiv preprint arXiv:1007.5079},
year = {2010}
}
Comments
16 pages, 4 figures