Title :
Studies of classical radiation emission from plasma wave undulators
Author :
Williams, R.L. ; Clayton, C.E. ; Joshi, C. ; Katsouleas, T.C.
Author_Institution :
Dept. of Phys., Florida A&M Univ., Tallahassee, FL, USA
fDate :
2/1/1993 12:00:00 AM
Abstract :
The authors examine the characteristics of the classical radiation emitted by a relativistic electron beam that propagates perpendicularly through a large amplitude relativistic plasma wave. Such a study is useful for evaluating the feasibility of using relativistic plasma waves as extremely short wavelength undulators for generating short wavelength radiation. The electron trajectories in a plasma wave undulator are obtained using perturbation techniques and are then compared to numerical simulation results. The frequency spectrum and angular distribution of the spontaneous radiation emitted by a single electron and the stimulated radiation gain are obtained analytically, and are then compared to 3-D numerical simulations. The characteristics of the plasma wave undulator are compared to the AC free-electron laser (FEL) undulator and the conventional FEL
Keywords :
perturbation theory; plasma devices; plasma simulation; plasma waves; plasma-beam interactions; relativistic plasmas; undulator radiation; AC free-electron laser undulator; FEL; angular distribution; classical radiation emission; electron trajectories; frequency spectrum; large amplitude relativistic plasma wave; numerical simulation; perturbation techniques; plasma wave undulators; relativistic electron beam; short wavelength undulators; spontaneous radiation; stimulated radiation gain; Electron beams; Electron emission; Electrostatics; Free electron lasers; Laser excitation; Laser theory; Optical propagation; Optical pulses; Plasma waves; Undulators;
Journal_Title :
Plasma Science, IEEE Transactions on
