Anomaly in the relaxation dynamics close to the surface plasmon resonance
Mesoscale and Nanoscale Physics
2007-05-23 v2
Abstract
We propose an explanation for the anomalous behaviour observed in the relaxation dynamics of the differential optical transmission of noble-metal nanoparticles. Using the temperature dependences of the position and the width of the surface plasmon resonance, we obtain a strong frequency dependence in the time evolution of the transmission close to the resonance. In particular, our approach accounts for the slowdown found below the plasmon frequency. This interpretation is independent of the presence of a nearby interband transition which has been invoked previously. We therefore argue that the anomaly should also appear for alkaline nanoparticles.
Keywords
Cite
@article{arxiv.cond-mat/0612141,
title = {Anomaly in the relaxation dynamics close to the surface plasmon resonance},
author = {Guillaume Weick and Dietmar Weinmann and Gert-Ludwig Ingold and Rodolfo A. Jalabert},
journal= {arXiv preprint arXiv:cond-mat/0612141},
year = {2007}
}
Comments
version published in EPL