Format

Send to

Choose Destination
See comment in PubMed Commons below
Nano Lett. 2010 Aug 11;10(8):3090-5. doi: 10.1021/nl1017173.

Optical spectroscopy of conductive junctions in plasmonic cavities.

Author information

1
Donostia International Physics Center and Centro de Física de Materiales, Centro Mixto CSIC-UPV/EHU, Paseo Manuel Lardizabal 4, 20018 Donostia-San Sebastián, Spain.

Abstract

The optical properties of a nanoparticle dimer bridged by a conductive junction depend strongly on the junction conductivity. As the conductivity increases, the bonding dimer plasmon blueshifts and broadens. For large conductance, a low energy charge transfer plasmon also appears in the spectra with a line width that decreases with increasing conductance. A simple physical model for the understanding of the spectral feature is presented. Our finding of a strong influence of junction conductivity on the optical spectrum suggests that plasmonic cavities might serve as probes of molecular conductance at elevated frequencies not accessible through electrical measurements.

PMID:
20698622
DOI:
10.1021/nl1017173
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for American Chemical Society
    Loading ...
    Support Center