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Proceedings Paper

Relative magnitude of dipolar and quadrupolar contriubutions to the second harmonic generation from small gold metallic nanoparticles
Author(s): Jérôme Nappa; Guillaume Revillod; Isabelle Russier-Antoine; Christian Jonin; Emmanuel Benichou; Pierre-François Brevet
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Paper Abstract

The optical second harmonic response from small gold metallic particles with a diameter ranging between 20 and 100 nm is investigated with the technique of Hyper Rayleigh Scattering. The analysis is performed as a function of the polarization state of the incoming fundamental beam. For the particles with the smallest diameters, the nonlinear optical response is purely dipolar, arising from the surface of the particles owing to the breaking of the centrosymmetry of the particles. For larger diameter particles, the retardation effects cannot be neglected anymore, the response exhibiting a clear quadrupolar pattern. A general framework is proposed to discuss the experimental data, based on a a weighing parameter allowing the quanitfication of the relative magnitude of the dipolar and quadrupoloar contributions.

Paper Details

Date Published: 9 June 2006
PDF: 8 pages
Proc. SPIE 6258, ICONO 2005: Novel Photonics Materials: Physics and Optical Diagnostics of Nanostructures, 62580O (9 June 2006); doi: 10.1117/12.677128
Show Author Affiliations
Jérôme Nappa, Lab. de Spectrométrie Ionique et Moléculaire, CNRS, Univ. Claude Bernard Lyon 1 (France)
Guillaume Revillod, Lab. de Spectrométrie Ionique et Moléculaire, CNRS, Univ. Claude Bernard Lyon 1 (France)
Isabelle Russier-Antoine, Lab. de Spectrométrie Ionique et Moléculaire, CNRS, Univ. Claude Bernard Lyon 1 (France)
Christian Jonin, Lab. de Spectrométrie Ionique et Moléculaire, CNRS, Univ. Claude Bernard Lyon 1 (France)
Emmanuel Benichou, Lab. de Spectrométrie Ionique et Moléculaire, CNRS, Univ. Claude Bernard Lyon 1 (France)
Pierre-François Brevet, Lab. de Spectrométrie Ionique et Moléculaire, CNRS, Univ. Claude Bernard Lyon 1 (France)


Published in SPIE Proceedings Vol. 6258:
ICONO 2005: Novel Photonics Materials: Physics and Optical Diagnostics of Nanostructures
Valentin Dmitriev; Vladimir Shalaev; Vladimir Shuvalov; Nikolay Zheludev, Editor(s)

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