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On a free-electron-laser in a uniform magnetic field. A solution for arbitrarily strong electromagnetic radiation fields

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Abstract

Exact expressions are derived for the gain of a free-electron laser based on a uniform longitudinal magnetic field configuration operating in the single-particle, low-gain regime. The gain is calculated for different parameters of the system. For strong enough a field, the gain decreases with an increase of the amplitude, becoming negative when passing a threshold value, which depends on the system parameters. Implications regarding the saturation of the lasing process are discussed.

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Author notes

  1. Y. Gell

    Present address: Department of Physics and Astronomy, Tel-Aviv University, Tel-Aviv, Israel

Authors and Affiliations

  1. Institute for Electromagnetic Field Theory, Chalmers University of Technology, S-41396, Göteborg, Sweden

    Y. Gell, J. R. Torstensson & H. Wilhelmsson

  2. Department of Physics and Astronomy, Tel-Aviv University, Tel-Aviv, Israel

    B. Levush

Authors
  1. Y. Gell
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  2. J. R. Torstensson
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  3. H. Wilhelmsson
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  4. B. Levush
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Gell, Y., Torstensson, J.R., Wilhelmsson, H. et al. On a free-electron-laser in a uniform magnetic field. A solution for arbitrarily strong electromagnetic radiation fields. Appl. Phys. B 27, 15–18 (1982). https://doi.org/10.1007/BF00697291

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  • DOI: https://doi.org/10.1007/BF00697291

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