10 September 2010 Controlling the optical spectra of gold nano-islands by changing the aspect ratio and the inter-islands distance: theory and experiment
Author Affiliations +
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.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yakov M. Strelniker, Yakov M. Strelniker, Yafit Fleger, Yafit Fleger, Michael Rosenbluh, Michael Rosenbluh, David J. Bergman, David J. Bergman, } "Controlling the optical spectra of gold nano-islands by changing the aspect ratio and the inter-islands distance: theory and experiment", Proc. SPIE 7757, Plasmonics: Metallic Nanostructures and Their Optical Properties VIII, 775721 (10 September 2010); doi: 10.1117/12.864308; https://doi.org/10.1117/12.864308
PROCEEDINGS
10 PAGES


SHARE
Back to Top