Off-resonant optical excitation of gold nanorods: Nanoscale imprint of polarization surface charge distribution

Claire Deeb, Xuan Zhou, Davy Gérard, Alexandre Bouhelier, Prashant K. Jain, Jérôme Plain, Olivier Soppera, Pascal Royer, Renaud Bachelot

Research output: Contribution to journalArticle

Abstract

We report on the nanoscale optical characterization of gold nanorods irradiated out of their plasmonic resonance. Our approach is based on the reticulation of a photopolymerizable formulation locally triggered by enhanced electromagnetic fields. The tiny local field enhancement stems from the surface polarization charges associated with the electric field discontinuity at the metal/dielectric interface. This allows us to get a nanoscale signature of the spatial distribution of the surface charge density in metallic nanoparticles irradiated off-resonance.

Original languageEnglish (US)
Pages (from-to)7-11
Number of pages5
JournalJournal of Physical Chemistry Letters
Volume2
Issue number1
DOIs
StatePublished - Jan 6 2011
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Physical and Theoretical Chemistry

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