Title :
High-efficiency nonadiabatic trapping of electrons in the ponderomotive potential wells of laser beats
Author :
Sheena, Z. ; Ruschin, S. ; Gover, A. ; Kleinman, H.
Author_Institution :
Fac. of Eng., Tel-Aviv Univ., Ramat-Aviv, Israel
fDate :
2/1/1990 12:00:00 AM
Abstract :
Experimental results are reported for nonlinear interactions between a nonrelativistic electron beam and the ponderomotive field (beat wave) of two counterpropagating pulsed CO2 laser beams, operating at different frequencies in a stimulated Compton scheme. Very high electron trapping efficiencies were obtained by introducing a nonadiabatic shift in the energy of the electrons in order to bring them into resonance with the ponderomotive wave. With an axial decelerating electric field applied along an interaction path of 12 cm, trapping efficiencies of above 60% with energy transfer of 6 eV between the electrons and the radiation field were obtained
Keywords :
carbon compounds; electron beams; electron traps; laser beam effects; laser beams; nonlinear optics; 12 cm; 6 eV; 60 percent; axial decelerating electric field; beat wave; counterpropagating pulsed CO2 laser beams; electron energy shifts; electron trapping; electron trapping efficiencies; electron/ponderomotive wave resonance; electron/radiation field energy transfer; energy transfer; interaction path; laser beats; nonadiabatic shift; nonadiabatic trapping; nonlinear interactions; nonrelativistic electron beam; ponderomotive field; ponderomotive potential wells; stimulated Compton scheme; trapping efficiencies; Atherosclerosis; Electron beams; Electron traps; Energy exchange; Equations; Free electron lasers; Frequency; Laser beams; Optical pulses; Potential well; Resonance;
Journal_Title :
Quantum Electronics, IEEE Journal of
