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Effective Excitation of Superfocusing Surface Plasmons using Phase Controlled Waveguide Modes

Published online by Cambridge University Press:  31 January 2011

Kazuhiro Yamamoto ,
Kazuyoshi Kurihara ,
Junichi Takahara  and
Akira Otomo
Kazuhiro Yamamoto
Affiliation:
kazu-yama@nict.go.jp, National Institute of Information and Communications Technology, Kobe, Hyogo, Japan
Kazuyoshi Kurihara
Affiliation:
k-kuri@nict.go.jp, National Institute of Information and Communications Technology, Kobe, Hyogo, Japan
Junichi Takahara
Affiliation:
takahara@ee.es.osaka-u.ac.jp, Osaka University, Toyonaka, Osaka, Japan
Akira Otomo
Affiliation:
akira_o@nict.go.jp, National Institute of Information and Communications Technology, Kobe, Hyogo, Japan
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Abstract

We propose more practical method to realize the superfocusing modes based on waveguide structures, and present a numerical analysis these structures using the finite-difference time-domain (FDTD) simulations. For metallic wedged structure coupled to dielectric waveguides, we investigate a method of controlling superfocusing by changing the phase of waveguide modes.

Keywords

metalnanoscaleoptical properties
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1182: Symposium EE – Materials for Nanophotonics–Plasmonics, Metamaterials and Light Localization , 2009 , 1182-EE13-05
Copyright
Copyright © Materials Research Society 2009

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