Quantitative analysis of localized surface plasmons based on molecular probing.
We report on the quantitative characterization of the plasmonic optical near-field of a single silver nanoparticle. Our approach relies on nanoscale molecular molding of the confined electromagnetic field by photoactivated molecules. We were able to directly image the dipolar profile of the near-field distribution with a resolution better than 10 nm and to quantify the near-field depth and its enhancement factor. A single nanoparticle spectral signature was also assessed. This quantitative characterization constitutes a prerequisite for developing nanophotonic applications.
Deeb
Claire
C
Laboratoire de Nanotechnologie et d'Instrumentation Optique LNIO-ICD CNRS-UMR 6279, Université de Technologie de Troyes, Troyes, France.
Bachelot
Renaud
R
Plain
Jérôme
J
Baudrion
Anne-Laure
AL
Jradi
Safi
S
Bouhelier
Alexandre
A
Soppera
Olivier
O
Jain
Prashant K
PK
Huang
Libai
L
Ecoffet
Carole
C
Balan
Lavinia
L
Royer
Pascal
P