This article is cited in 1 paper

Interaction of laser radiation with matter. Laser plasma

Effect of pulsed laser target cleaning on ionisation and acceleration of ions in a plasma produced by a femtosecond laser pulse

R. V. Volkov^a, A. A. Vorob'ev^a, V. M. Gordienko^ab, M. S. Dzhidzhoev^a, I. M. Lachko^ab, B. V. Mar'in^c, A. B. Savel'ev^ab, D. S. Uryupina<sup>a

a</sup> Lomonosov Moscow State University, Faculty of Physics
^b International Laser Center of Moscow State University
^c Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University

Abstract: The impurity layer on the surface of a solid target is shown to exert a significant effect on the characteristics of the ion current of the laser plasma produced under the action of ultrahigh-intensity femtosecond radiation on the surface of this target. The application of pulsed laser cleaning gives rise to an additional high-energy component in the ion spectrum of the target material. It is shown that the ion current parameters of the laser plasma such as the average and highest ion charge, the highest ion energy of the target material, etc., can be controlled by varying the lead time of the cleaning laser radiation.

PACS: 52.38.Kd, 52.70.Nc, 52.77.Bn

Received: 11.04.2005
Revised: 16.08.2005

 English version: Quantum Electronics, 2005, 35:10, 953–958

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