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Proceedings Paper

Characteristics of plasmonic waveguides and nonlinear metallic particles
Author(s): Masuo Fukui; Toshihiro Okamoto; Toshiaki Ogawa; Masanobu Haraguchi; David F. P. Pile; Dmitri K. Gramotnev
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Paper Abstract

We have measured the propagation distances of wedge plasmons and two-dimensionally localized gap plasmons (GPW) at a vacuum wavelength of 632.8nm. The measured propagation distances of the wedge plasmons increased from 2.2μm to 3.1μm with increasing the wedge tip radius from 20nm to 125nm. The GPW has the measured propagation distance of 8.2μm for a gap width of 100nm and 900nm height. We have developed a finite-difference time-domain (FDTD) method represented by the spherical coordinates which is applicable for numerical calculations of nonlinear optical responses. This FDTD technique gives information about time-dependent spatial distributions of light intensity in nonlinear metallic particles and we can deeply understand nonlinear optical phenomena related with localized surface plasmons in a spherical particle.

Paper Details

Date Published: 11 September 2006
PDF: 10 pages
Proc. SPIE 6324, Plasmonics: Nanoimaging, Nanofabrication, and their Applications II, 632401 (11 September 2006); doi: 10.1117/12.679397
Show Author Affiliations
Masuo Fukui, The Univ. of Tokushima (Japan)
Toshihiro Okamoto, The Univ. of Tokushima (Japan)
Toshiaki Ogawa, The Univ. of Tokushima (Japan)
Masanobu Haraguchi, The Univ. of Tokushima (Japan)
David F. P. Pile, Univ. of California, Berkeley (United States)
Dmitri K. Gramotnev, Queensland Univ. of Technology (Australia)

Published in SPIE Proceedings Vol. 6324:
Plasmonics: Nanoimaging, Nanofabrication, and their Applications II
Satoshi Kawata; Vladimir M. Shalaev; Din Ping Tsai, Editor(s)

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