Authors
Claire Deeb, Xuan Zhou, Davy Gérard, Alexandre Bouhelier, Prashant Jain, Jérôme Plain, Olivier Soppera, Pascal Royer, Renaud Bachelot,
Title
Off-Resonant Optical Excitation of Gold Nanorods: Nanoscale Imprint of Polarization Surface Charge Distribution
In
The Journal of Physical Chemistry Letters
Volume
2
Issue
1
Pages
7–11
Publisher
ACS
Year
2011
Publisher's URL
http://pubs.acs.org/doi/abs/10.1021/jz1014696
Indexed by
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.
Affiliations
Offprint