I. V. Blonskii, I. N. Dmitruk, O. A. Eshchenko, I. A. Pavlov, V. N. Kadan, P. I. Korenyuk, A. A. Alekseenko, A. N. Dmitruk, “Change in the resonance frequency of surface plasmons in copper nanoparticles excited by femtosecond laser pulses”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2008, Volume 88, Issue 1,Pages <nobr>46

This article is cited in 2 papers

CONDENSED MATTER

Change in the resonance frequency of surface plasmons in copper nanoparticles excited by femtosecond laser pulses

I. V. Blonskii^a, I. N. Dmitruk^ba, O. A. Eshchenko^b, I. A. Pavlov^a, V. N. Kadan^a, P. I. Korenyuk^a, A. A. Alekseenko^c, A. N. Dmitruk^a

^a Institute of Physics, National Academy of Sciences of Ukraine, pr. Nauki 144, Kiev, 03028 Ukraine
^b Shevchenko National University, Vladimirskaya ul. 64, Kiev, 03022 Ukraine
^c Gomel Technical University, Gomel, Belarus

Abstract: Changes in the optical density ΔD(t), halfwidth ΔH/2(t), and spectral position of the maximum Δλ_SP(t) of the surface plasmon band in Cu nanoparticles after their excitation by femtosecond laser pulses have been investigated. The Δλ_SP(t) dependence appears to be alternating and is accompanied by a nonmonotonic variation in ΔH/2(t) in the time interval 0–5 ps. The results are explained in a model based on the evolution of the dielectric response of such a composite medium excited by intense laser pulses.

PACS: 71.45.Gm, 78.47.-j, 78.67.-n

Received: 15.04.2008
Revised: 30.05.2008