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Two-dimensionally localized modes of a nanoscale gap plasmon waveguide.

Authors :
Pile, D. F. P.
Ogawa, T.
Gramotnev, D. K.
Matsuzaki, Y.
Vernon, K. C.
Yamaguchi, K.
Okamoto, T.
Haraguchi, M.
Fukui, M.
Source :
Applied Physics Letters; 12/26/2005, Vol. 87 Issue 26, p261114, 3p, 3 Graphs
Publication Year :
2005

Abstract

We report numerical analysis and experimental observation of two dimensionally localized plasmonic modes guided by a nanogap 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 charge coupled device camera imaging. Physical interpretation of the obtained results is presented and origins of the described modes are discussed. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00036951
Volume :
87
Issue :
26
Database :
Complementary Index
Journal :
Applied Physics Letters
Publication Type :
Academic Journal
Accession number :
19406293
Full Text :
https://doi.org/10.1063/1.2149971