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Two-dimensionally localized modes of a nano-scale gap plasmon waveguide

Pile, David F.P., Ogawa, Takeshi, Gramotnev, Dmitri K., Matsuzaki, Y., Vernon, Kristy C., Yamaguchi, K., Okamoto, Toshihiro, Haraguchi, Masanobu, & Fukui, Masuo (2005) Two-dimensionally localized modes of a nano-scale gap plasmon waveguide. Applied Physics Letters, 87(26), p. 261114.

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Abstract

We report numerical analysis and experimental observation of two-dimensionally localized plasmonic modes guided by a nano-gap in a thin metal film. Dispersion, dissipation and field structure of these modes are analyzed using the finite-difference time-domain algorithm. The experimental observation is conducted by the end-fire excitation of the proposed gap plasmon waveguides and detection of the generated modes using their edge scattering and CCD camera imaging. Physical interpretation of the obtained results is presented and origins of the described modes are discussed.

Impact and interest:

148 citations in Scopus
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135 citations in Web of Science®

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571 since deposited on 19 Jul 2006
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ID Code: 3115
Item Type: Journal Article
Keywords: plasmon, plasmonic, subwavelength, waveguide, gap plasmon, slot waveguide, nano, diffraction limit, optical
DOI: 10.1063/1.2149971
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: 19 Jul 2006
Last Modified: 29 Feb 2012 23:16

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