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Distribution and evolution of electrons in a cluster plasma created by a laser pulse

  • Plasma, Gases
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Abstract

We analyze the properties and the character of the evolution of an electron subsystem of a large cluster (with a number of atoms n∼104−106) interacting with a short laser pulse of high intensity (1017−1019 W/cm2). As a result of ionization in a strong laser field, cluster atoms are converted into multicharged ions, part of the electrons being formed leaves the cluster, and the other electrons move in a self-consistent field of the charged cluster and the laser wave. It is shown that electron-electron collisions are inessential both during the cluster irradiation by the laser pulse and in the course of cluster expansion; the electron distribution in the cluster therefore does not transform into the Maxwell distribution even during cluster expansion. During cluster expansion, the Coulomb field of a cluster charge acts on cluster ions more strongly than the pressure resulting from electron-ion collisions. In addition, bound electrons remain inside the cluster in the course of its expansion, and cluster expansion therefore does not lead to additional cluster ionization.

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Authors and Affiliations

  1. Russian Research Centre Kurchatov Institute, pl. Kurchatova 1, Moscow, 123182, Russia

    M. B. Smirnov

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  1. M. B. Smirnov
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From Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 124, No. 1, 2003, pp. 48–54.

Original English Text Copyright © 2003 by Smirnov.

This article was submitted by the author in English.

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Smirnov, M.B. Distribution and evolution of electrons in a cluster plasma created by a laser pulse. J. Exp. Theor. Phys. 97, 42–48 (2003). https://doi.org/10.1134/1.1600795

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  • DOI: https://doi.org/10.1134/1.1600795

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