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

Journal Article · Wed Dec 31 00:00:00 EST 2014 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2014V044N12ABEH015514· OSTI ID:22373316

Bogatskaya, A V; Popov, A M ^[1]; Volkova, E A ^[2]

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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)

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)

• OSTI ID: 22373316
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 44, Issue 12; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

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