Particle dynamics associated with a Gaussian resonator mode and realistic wiggler in a free electron laser
Abstract
Electron dynamics in the ponderomotive potential well of the free electron laser, including effects of betatron oscillations and the synchrotron oscillations associated with the Gaussian resonator radiation, are presently analyzed. When the wavelength of the betatron oscillation becomes approximately twice the synchrotron wavelength, off-axis electrons can become detrapped from the ponderomotive potential wells. Numerical examples illustrating this phenomenon are given and criteria are suggested by means of which to avoid this undesirable detrapping process.
- Publication:
-
Lasers 1983; Proceedings of the International Conference
- Pub Date:
- 1985
- Bibcode:
- 1985lase.conf..311T
- Keywords:
-
- Electron Beams;
- Free Electron Lasers;
- Laser Modes;
- Optical Resonators;
- Particle Motion;
- Wiggler Magnets;
- Bessel Functions;
- Coupling;
- Electron Capture;
- Electron Oscillations;
- Ponderomotive Forces;
- Potential Energy;
- Lasers and Masers