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Title: Propagation and amplification of microwave radiation in a plasma channel created in gas by a high-power femtosecond UV laser pulse

The time evolution of a nonequilibrium plasma channel created in a noble gas by a high-power femtosecond KrF laser pulse is investigated. It is shown that such a channel possesses specific electrodynamic properties and can be used as a waveguide for efficient transportation and amplification of microwave pulses. The propagation of microwave radiation in a plasma waveguide is analyzed by self-consistently solving (i) the Boltzmann kinetic equation for the electron energy distribution function at different spatial points and (ii) the wave equation in the parabolic approximation for a microwave pulse transported along the plasma channel.
Authors:
 [1] ;  [2] ;  [1] ;  [3]
  1. Moscow State University, Faculty of Physics (Russian Federation)
  2. Moscow State University, Skobeltsyn Nuclear Physics Research Institute (Russian Federation)
  3. Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation)
Publication Date:
OSTI Identifier:
22614162
Resource Type:
Journal Article
Resource Relation:
Journal Name: Plasma Physics Reports; Journal Volume: 42; Journal Issue: 2; Other Information: Copyright (c) 2016 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AMPLIFICATION; APPROXIMATIONS; BOLTZMANN EQUATION; DISTRIBUTION FUNCTIONS; ELECTRODYNAMICS; ELECTRONS; ENERGY SPECTRA; KRYPTON FLUORIDE LASERS; MICROWAVE RADIATION; NON-EQUILIBRIUM PLASMA; PULSES; RARE GASES; ULTRAVIOLET RADIATION; WAVE EQUATIONS; WAVEGUIDES