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Proceedings Paper

Electron-positron pair creation by a multimode field of an optical laser
Author(s): N. A. Tarakanov; A. V. Prozorkevich; S. A. Smolyansky; A. V. Tarakanov
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Paper Abstract

The investigation of the electric field of modern powerful optical lasers predicts the creation of a dense quasiparticle plasma in the foci of counter-propagating optical laser beams. One more way for experimental proof of plasma creation is an experiment with two-mode laser beams, which are considered as a superposition of two monochromatic waves with commensurable frequencies. We investigate this problem in the framework of the quantum kinetics formulation. The resulting kinetic equation for the distribution function contains a source term describing the vacuum quasiparticle creation in a homogeneous external field. The total quasiparticle number density can be found as a moment of the distribution function. The time dependence of the pair density for the case of one- and two-mode fields and the case of two-mode fields with different frequency coefficient of proportionality are considered.

Paper Details

Date Published: 8 August 2006
PDF: 5 pages
Proc. SPIE 6165, Saratov Fall Meeting 2005: Laser Physics and Photonics, Spectroscopy and Molecular Modeling VI, 616509 (8 August 2006); doi: 10.1117/12.696843
Show Author Affiliations
N. A. Tarakanov, Saratov State Univ. (Russia)
A. V. Prozorkevich, Saratov State Univ. (Russia)
S. A. Smolyansky, Saratov State Univ. (Russia)
A. V. Tarakanov, Saratov State Univ. (Russia)

Published in SPIE Proceedings Vol. 6165:
Saratov Fall Meeting 2005: Laser Physics and Photonics, Spectroscopy and Molecular Modeling VI
Vladimir L. Derbov; Leonid A. Melnikov; Lev M. Babkov, Editor(s)

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