Title :
Stimulated wave scattering in the Smith-Purcell FEL
Author :
Savilov, Andrey V.
Author_Institution :
Inst. of Appl. Phys., Acad. of Sci., Nizhny Novgorod, Russia
fDate :
10/1/2001 12:00:00 AM
Abstract :
Frequency multiplication in the Smith-Purcell free electron laser (FEL) as a way to obtain powerful millimeter/ sub-millimeter stimulated radiation from a high-current, moderately relativistic electron beam is studied. It is shown that the main mechanism that provided the multiplication is mutual scattering of low-frequency and high-frequency waves on the electron beam. The use of this mechanism can provide the power level of tens of megawatts and the possibility of a relatively broadband (few percent) frequency tuning
Keywords :
free electron lasers; millimetre wave frequency convertors; relativistic electron beams; stimulated scattering; Smith-Purcell free electron laser; Smith-Purcell oscillator; broadband frequency tuning; electron bunches; frequency multiplication; high-current moderately relativistic electron beam; high-frequency wave radiation; high-frequency waves; low-frequency waves; millimeter wave stimulated radiation; mutual scattering; self-excited backward low-frequency wave; stimulated wave scattering; sub-millimeter stimulated radiation; triple resonance; wave scattering; Electron beams; Free electron lasers; Frequency conversion; Hafnium; Laser modes; Laser tuning; Oscillators; Power lasers; Resonance; Scattering;
Journal_Title :
Plasma Science, IEEE Transactions on
