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Title: Plasmonic coupled-cavity system for enhancement of surface plasmon localization in plasmonic detectors
Authors: Ooi, Kelvin J. A.
Bai, Ping
Gu, Mingxia
Ang, Ricky Lay Kee
Keywords: DRNTU::Engineering::Electrical and electronic engineering
Issue Date: 2012
Source: Ooi, K. J. A., Bai, P., Gu, M., & Ang, L. K. R. (2012). Plasmonic coupled-cavity system for enhancement of surface plasmon localization in plasmonic detectors. Nanotechnology, 23(27).
Series/Report no.: Nanotechnology
Abstract: A plasmonic coupled-cavity system, which consists of a quarter-wave coupler cavity, a resonant Fabry–Pérot 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.
ISSN: 0957-4484
DOI: 10.1088/0957-4484/23/27/275201
Rights: © 2012 IOP Publishing Ltd.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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