Title :
Free electron laser pumped by a powerful traveling electromagnetic wave
Author :
Kehs, R.Alan ; Carmel, Yuval ; Granatstein, Victor L. ; Destler, William W.
Author_Institution :
Harry Diamond Labs., Adelphi, MD, USA
fDate :
6/1/1990 12:00:00 AM
Abstract :
A three-wave free-electron laser (FEL) was operated with a powerful 8.4-GHz electromagnetic pump wave replacing the usual magnetostatic wiggler. The presence of a uniform axial magnetic field B0 produced cyclotron-harmonic idler waves. Peaks in the emission spectrum corresponding to cyclotron harmonics were observed covering a frequency range from 16.5 to 130 GHz. The frequency spectrum of this novel FEL mechanism was tuned continuously by the variation of B0
Keywords :
free electron lasers; masers; optical harmonic generation; optical pumping; 16.5 to 130 GHz; 8.4 GHz; cyclotron harmonics; cyclotron-harmonic idler waves; electromagnetic pump wave; emission spectrum; free electron laser; frequency spectrum; optical pumping; three-wave free-electron laser; traveling electromagnetic wave; uniform axial magnetic field; Cyclotrons; Electromagnetic scattering; Free electron lasers; Frequency; Laser excitation; Magnetic fields; Magnetostatic waves; Power lasers; Pump lasers; Undulators;
Journal_Title :
Plasma Science, IEEE Transactions on
