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Proceedings Paper

Multipolar tensor analysis of second-harmonic radiation from gold nanoparticles
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Paper Abstract

We present a comprehensive multipolar tensor analysis to investigate the roles of dipolar and higher-order multipoles to second-harmonic radiation from a regular array of noncentrosymmetric L-shaped gold nanoparticles. We find the nonlinear response to be dominated by a tensor component which is associated with chiral symmetry breaking and has strong multipolar character. These findings substantiate our interpretation that one of the major contributors to the optical response of the present sample are structural defects, which break the symmetry and make multipolar contributions to the SH response important.

Paper Details

Date Published: 26 August 2008
PDF: 8 pages
Proc. SPIE 7032, Plasmonics: Metallic Nanostructures and Their Optical Properties VI, 70321Y (26 August 2008); doi: 10.1117/12.794628
Show Author Affiliations
Sami Kujala, Tampere Univ. of Technology (Finland)
Brian K. Canfield, Tampere Univ. of Technology (Finland)
Martti Kauranen, Tampere Univ. of Technology (Finland)
Yuri Svirko, Univ. of Joensuu (Finland)
Jari Turunen, Univ. of Joensuu (Finland)

Published in SPIE Proceedings Vol. 7032:
Plasmonics: Metallic Nanostructures and Their Optical Properties VI
Mark I. Stockman, Editor(s)

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