On a free-electron-laser in a uniform magnetic field - A solution for arbitrarily strong electromagnetic radiation fields
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.
- Publication:
-
Applied Physics B Photophysics Laser Chemistry
- Pub Date:
- January 1982
- Bibcode:
- 1982ApPPL..27...15G
- Keywords:
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- Electromagnetic Fields;
- Free Electron Lasers;
- Magnetic Field Configurations;
- Power Gain;
- Amplitudes;
- Lasing;
- Relativistic Electron Beams;
- Thresholds;
- Lasers and Masers