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Proceedings Paper

Ultrafast optical nonlinearities of plasmons in single gold nanorods
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Paper Abstract

Excitation of plasmons in a metal nanoparticle leads to localization of electromagnetic fields within the particle, which is expected to result in strong optical nonlinearities. We study ultrafast nonlinearities in optical scattering from single gold nanorods under resonant excitation at the plasmon frequency, and observe changes of as much as 20% in the scattering cross section over the 20-fs laser pulse duration. Unexpectedly, the magnitude of the ultrafast nonlinearity is the same as that due to heating of conduction electrons in the metal.

Paper Details

Date Published: 18 August 2005
PDF: 11 pages
Proc. SPIE 5927, Plasmonics: Metallic Nanostructures and Their Optical Properties III, 59270Z (18 August 2005); doi: 10.1117/12.615443
Show Author Affiliations
Matthew Pelton, Univ. of Chicago (United States)
Mingzhao Liu, Univ. of Chicago (United States)
Sungnam Park, Univ. of Chicago (United States)
Norbert Scherer, Univ. of Chicago (United States)
Philippe Guyot-Sionnest, Univ. of Chicago (United States)

Published in SPIE Proceedings Vol. 5927:
Plasmonics: Metallic Nanostructures and Their Optical Properties III
Mark I. Stockman, Editor(s)

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