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Proceedings Paper

Controlling the optical spectra of gold nano-islands by changing the aspect ratio and the inter-islands distance: theory and experiment
Author(s): Yakov M. Strelniker; Yafit Fleger; Michael Rosenbluh; David J. Bergman
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Paper Abstract

The absorption spectrum of a dielectric film with periodic array of metallic islands of different shapes and different mutual distances was studied analytically, numerically, and experimentally. We show that the positions of the surface plasmon resonances depend on the nano-structural details. We propose two ways of controlling plasmon resonance frequency: changing the aspect ratio of the elliptical or rectangular islands and changing their mutual distances. A new analytical asymptotic approach for calculating the optical properties of such plasmonic systems is developed. The results of our analytical and numerical studies are in good qualitative agreement with experiment.

Paper Details

Date Published: 11 September 2010
PDF: 10 pages
Proc. SPIE 7757, Plasmonics: Metallic Nanostructures and Their Optical Properties VIII, 775721 (11 September 2010); doi: 10.1117/12.864308
Show Author Affiliations
Yakov M. Strelniker, Bar-Ilan Univ. (Israel)
Yafit Fleger, Bar-Ilan Univ. (Israel)
Michael Rosenbluh, Bar-Ilan Univ. (Israel)
David J. Bergman, Tel Aviv Univ. (Israel)

Published in SPIE Proceedings Vol. 7757:
Plasmonics: Metallic Nanostructures and Their Optical Properties VIII
Mark I. Stockman, Editor(s)

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