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Effect of Electron–Ion Collisions on the Generation of Terahertz Radiation at the Interaction of Femtosecond Pulse with Plasma in Magnetic Field

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Journal of Russian Laser Research Aims and scope

Abstract

We establish the conditions under which collisions of electrons with ions affect the generation of terahertz radiation at normal incidence of a laser pulse on a dense plasma in a constant magnetic field. If during the time of exposure to the laser pulse, the number of collisions of electrons occurred is not small, then the amplitude of generated magnetic field decreases, the shape of the generated pulse changes, and the total energy of terahertz radiation decreases. The influence of collisions on the generation of terahertz radiation manifests itself in a relatively weak magnetic field, when the electron cyclotron frequency is lower than the plasma frequency.

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Authors and Affiliations

  1. Lebedev Physical Institute, Russian Academy of Sciences, Leninskii Prospect 53, Moscow, 119991, Russia

    Vyacheslav E. Grishkov, Konstantin N. Ovchinnikov & Sergey A. Uryupin

  2. National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Highway Kashirskoe 31, Moscow, 115409, Russia

    Sergey A. Uryupin

Authors
  1. Vyacheslav E. Grishkov
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  2. Konstantin N. Ovchinnikov
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  3. Sergey A. Uryupin
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Correspondence to Sergey A. Uryupin.

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Grishkov, V.E., Ovchinnikov, K.N. & Uryupin, S.A. Effect of Electron–Ion Collisions on the Generation of Terahertz Radiation at the Interaction of Femtosecond Pulse with Plasma in Magnetic Field. J Russ Laser Res 42, 538–544 (2021). https://doi.org/10.1007/s10946-021-09991-0

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  • DOI: https://doi.org/10.1007/s10946-021-09991-0

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