Sidebands in the light absorption of driven metallic nanoparticles

Details Sidebands in the light absorption of driven metallic nanoparticles Sidebands in the light absorption of driven metallic nanoparticles

2007-03-27

arxiv.org/abs/cond-mat/0703721v1

Euro. Phys. J. D 44, 359 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 3 figures; see also cond-mat/0703720

Scientific paper

10.1140/epjd/e2007-00197-2

The dynamics of the surface plasmon in laser-driven metallic nanoparticles is described by means of a master-equation formalism. Within the Markov approximation, the dynamics is studied for different regimes ranging from weak excitation in photoabsorption experiments to strong excitation in pump-probe spectroscopy. It is shown that two collective levels are sufficient to describe the dynamics of the surface plasmon. On this basis, we predict the appearance of sidebands in the absorption spectrum of the probe laser field in pump-probe experiments.

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