Electronic temperature effects on the optical response of silver nanoparticles

P.-A. Hervieux; A. Benabbas; V. Halté; J.-Y. Bigot

doi:10.1140/epjd/e2003-00115-8

EPJ

Electronic temperature effects on the optical response of silver nanoparticles

P.-A. Hervieux¹^a, A. Benabbas², V. Halté² and J.-Y. Bigot²

¹ LPMC, Institut de Physique, Technopôle 2000, 57078 Metz, France
² GONLO, IPCMS, 23 rue du Loess, 67037 Strasbourg, France

Received: 10 September 2002
Revised: 22 November 2002
Published online: 3 July 2003

Abstract

The electronic temperature dependence of the optical absorption of silver nanoparticles is investigated in the framework of the time-dependent local-density approximation at finite temperature. Below the spectral region of interband transitions, we have found that the electronic temperature leads to a broadening and spectral shift of the surface plasmon resonance. The calculated differential transmission is in good agreement with recent experimental measurements obtained with time resolved pump-probe techniques.

PACS: 32.80.Dz – Autoionization / 36.40.Gk – Plasma and collective effects in clusters

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EPJ

Electronic temperature effects on the optical response of silver nanoparticles

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