Coherent emission from electron clusters in free-electron lasers
Abstract
A theoretical investigation of one possible way to increase the efficiency of free-electron lasers is presented: i.e., the utilization of coherent emission from electrons which arises when the electron beam is bunched in a definite manner into separate clusters with a sufficiently high particle density. Conditions are described under which the stimulated-emission gain per unit length of the undulator can increase by a factor that is substantially higher than unity. This leads to a corresponding increase of the efficiency of conversion of cluster energy into radiation energy.
- Publication:
-
Akademiia Nauk SSSR Doklady
- Pub Date:
- 1982
- Bibcode:
- 1982DoSSR.267..599G
- Keywords:
-
- Coherent Electromagnetic Radiation;
- Electron Bunching;
- Electron Emission;
- Energy Conversion Efficiency;
- Free Electron Lasers;
- Laser Outputs;
- Electron Beams;
- Electron Density (Concentration);
- Stimulated Emission;
- Wave Amplification;
- Lasers and Masers