Nanoscale Fabry-Perot interferometer using channel plasmon-polaritons in triangular metallic grooves

Pile, David F. P. & Gramotnev, Dmitri K. (2005) Nanoscale Fabry-Perot interferometer using channel plasmon-polaritons in triangular metallic grooves. Applied Physics Letters, 86(16), p. 161101.

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In this letter, we demonstrate the possibility of an effective nano-scale Fabry-Perot interferometer in a sub-wavelength plasmonic waveguide in the form of a triangular groove on a metal surface, guiding channel plasmon-polaritons (CPPs). The resonant cavity is formed by two semitransparent metal membranes (mirrors) placed into the groove. Effective filtering effect of the cavity is demonstrated, resulting in single-mode output from the cavity. Typical quality factor for the cavity of the resonant length is determined to be Q ~ 100 for the silver-vacuum structure with the 30 degree groove angle. Possible ways of increasing this factor are discussed.

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36 citations in Scopus
42 citations in Web of Science®
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ID Code: 1400
Item Type: Journal Article
Refereed: Yes
DOI: 10.1063/1.1905799
ISSN: 0003-6951
Subjects: Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000) > OPTICAL PHYSICS (020500)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2005 American Institute of Physics
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 09 Nov 2005 00:00
Last Modified: 29 Feb 2012 13:16

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