Generation of Terahertz Superradiance Pulses under Stimulated Scattering of Laser Radiation by an Associated High-Current Relativistic Electron Beam

We analyze the possibility of generating pulses of superradiance in the terahertz range during the concurrent scattering of a laser pulse by a high-current relativistic electron beam with frequency conversion downward. The scattered radiation propagates in the opposite direction (with respect to the...

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Bibliographic Details
Published in:Technical physics letters 2020-12, Vol.46 (12), p.1162-1166
Main Authors: Ginzburg, N. S., Yurovskiy, L. A., Nazarovsky, A. V., Sergeev, A. S., Zotova, I. V.
Format: Article
Language:English
Subjects:
Classical and Continuum Physics
High current
Laser beams
Lasers
Physics
Physics and Astronomy
Pulse duration
Relativistic effects
Relativistic electron beams
Scattering
Terahertz frequencies
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Summary:We analyze the possibility of generating pulses of superradiance in the terahertz range during the concurrent scattering of a laser pulse by a high-current relativistic electron beam with frequency conversion downward. The scattered radiation propagates in the opposite direction (with respect to the translational velocity of the particles). When pulses with an energy of 3 kJ are used as a pump at a wavelength of ~1 μm and the laser pulse duration and the length of the interaction region are optimized, it is possible to generate pulses of scattered counterpropagating (for the translational velocity of particles) radiation with a power of approximately 580 kW and a duration of 30 ps at 100 μm.
ISSN:1063-7850
1090-6533
DOI:10.1134/S1063785020120068