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Proceedings Paper

Reduced second harmonic generation from closely spaced pairs of Au nanoparticles
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Paper Abstract

Closely spaced pairs or "dimers" of elongated gold nanoparticles may be expected to exhibit electric field hotspots. We investigate the possible influence of hotspots on second harmonic generation. Preliminary results show that arrays of nanoparticle dimers exhibit reduced second-harmonic generation compared with arrays of single nanoparticles having similar extinction spectra, contradicting a simple model of second-harmonic generation (varying as the fourth power of the local fundamental field) if hotspots can be shown to exist in such gaps.

Paper Details

Date Published: 30 August 2006
PDF: 7 pages
Proc. SPIE 6323, Plasmonics: Metallic Nanostructures and their Optical Properties IV, 63230U (30 August 2006); doi: 10.1117/12.683075
Show Author Affiliations
Matthew D. McMahon, Vanderbilt Univ. (United States)
Davon Ferrara, Vanderbilt Univ. (United States)
Rene Lopez, Vanderbilt Univ. (United States)
Richard F. Haglund, Vanderbilt Univ. (United States)

Published in SPIE Proceedings Vol. 6323:
Plasmonics: Metallic Nanostructures and their Optical Properties IV
Mark I. Stockman, Editor(s)

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