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Energy and angular distribution of ions emitted from a plasma after relativistic self-focusing of laser beams*

Published online by Cambridge University Press:  09 March 2009

Thomas Häuser  and
Werner Scheid
Thomas Häuser
Affiliation:
Institut für Theoretische Physik, Justus-Liebig-Universität Giessen, Germany
Werner Scheid
Affiliation:
Institut für Theoretische Physik, Justus-Liebig-Universität Giessen, Germany
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Abstract

High-intensity laser beams propagating in a plasma become focused because the index of refraction depends on the relativistic mass of the electron and therefore is a function of the electric field strength through the electron velocity. Around the focus the laser field has such a high density of energy that electrons and ions are emitted owing to the nonlinear force arising from this field. The equations of motion for the electrons and the ions and the Maxwellian equations for the laser and plasma fields are solved under certain approximations. We calculate the maximal energy and the angular distribution of the emitted ions and compare the results with experimental data.

Type
Research Article
Information
Laser and Particle Beams , Volume 9 , Issue 3 , September 1991 , pp. 675 - 690
Copyright
Copyright © Cambridge University Press 1991

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