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Title: Numerical simulation of microwave amplification in a plasma channel produced in a gas via multiphoton ionisation by a femtosecond laser pulse

This paper examines the evolution of a nonequilibrium plasma channel produced in xenon by a femtosecond KrF laser pulse. We demonstrate that such a channel can be used to amplify microwave pulses over times of the order of the relaxation time of the photoelectron energy spectrum in xenon. Using the slowly varying amplitude approximation, we analyse the propagation and amplification of an rf pulse in a plasma channel, in particular when the rf field influences the electron energy distribution function in the plasma. (interaction of laser radiation with matter. laser plasma)
Authors:
;  [1] ;  [2]
  1. P N Lebedev Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)
  2. D.V. Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University, Moscow (Russian Federation)
Publication Date:
OSTI Identifier:
22373316
Resource Type:
Journal Article
Resource Relation:
Journal Name: Quantum Electronics (Woodbury, N.Y.); Journal Volume: 44; Journal Issue: 12; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; AMPLIFICATION; APPROXIMATIONS; COMPUTERIZED SIMULATION; ELECTRONS; ENERGY SPECTRA; IONIZATION; KRYPTON FLUORIDE LASERS; LASER RADIATION; MICROWAVE RADIATION; MULTI-PHOTON PROCESSES; NON-EQUILIBRIUM PLASMA; PULSES; RELAXATION TIME; XENON