Plasmonic coupled-cavity system for enhancement of surface plasmon localization in plasmonic detectors
Abstract
A plasmonic coupled-cavity system, which consists of a quarter-wave coupler cavity, a resonant Fabry-Perot detector nanocavity, and an off-resonant reflector cavity, is used to enhance the localization of surface plasmons in a plasmonic detector. The coupler cavity is designed based on transmission line theory and wavelength scaling rules in the optical regime, while the reflector cavity is derived from off-resonant resonator structures to attenuate transmission of plasmonic waves. We observed strong coupling of the cavities in simulation results, with an 86% improvement of surface plasmon localization achieved. The plasmonic coupled-cavity system may find useful applications in areas of nanoscale photodetectors, sensors, and an assortment of plasmonic-circuit devices.
Keywords
Cite
@article{arxiv.1312.7632,
title = {Plasmonic coupled-cavity system for enhancement of surface plasmon localization in plasmonic detectors},
author = {Kelvin J. A. Ooi and Ping Bai and Ming Xia Gu and Lay Kee Ang},
journal= {arXiv preprint arXiv:1312.7632},
year = {2013}
}
Comments
9 pages, 5 figures