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8 August 2006 Electron-positron pair creation by a multimode field of an optical laser
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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.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
N. A. Tarakanov, A. V. Prozorkevich, S. A. Smolyansky, and A. V. Tarakanov "Electron-positron pair creation by a multimode field of an optical laser", Proc. SPIE 6165, Saratov Fall Meeting 2005: Laser Physics and Photonics, Spectroscopy and Molecular Modeling VI, 616509 (8 August 2006); https://doi.org/10.1117/12.696843
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