Journal
JETP LETTERS
Volume 97, Issue 7, Pages 388-392Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0021364013070035
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- Russian Foundation for Basic Research [12-02-00064]
- Dynasty Foundation
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The evolution of the electron energy distribution function in a plasma channel in a xenon plasma at atmospheric pressure created by radiation of a KrF femtosecond laser has been considered. It has been shown that, owing to the existence of the Ramsauer minimum in the transport scattering cross section, such a channel can be used to amplify electromagnetic waves up to the terahertz frequency range at relaxation times of the energy spectrum of similar to 10(-7) s. The gain factor has been calculated as a function of the time and radiation frequency.
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