Method to generate a pulse train of few-cycle coherent radiation

We develop a method to generate a long pulse train of few-cycle coherent radiation by modulating an electron beam with a high power laser. The large energy modulation disperses the beam in a radiating undulator and leads to the production of phase-locked few-cycle coherent radiation pulses. These pu...

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Bibliographic Details
Published in:Physical review. Accelerators and beams 2016-09, Vol.19 (9), p.090701, Article 090701
Main Authors: Garcia, Bryant, Hemsing, Erik, Raubenheimer, Tor, Campbell, Lawrence T., McNeil, Brian W. J.
Format: Article
Language:English
Subjects:
Coherent radiation
Electron beams
High power lasers
Lasers
Mathematical models
PARTICLE ACCELERATORS
Radiation
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Summary:We develop a method to generate a long pulse train of few-cycle coherent radiation by modulating an electron beam with a high power laser. The large energy modulation disperses the beam in a radiating undulator and leads to the production of phase-locked few-cycle coherent radiation pulses. These pulses are produced at a high harmonic of the modulating laser, and are longitudinally separated by the modulating laser wavelength. We discuss an analytical model for this scheme and investigate the temporal and spectral properties of this radiation. This model is compared with numerical simulation results using the unaveraged code Puffin. We examine various harmful effects and how they might be avoided, as well as a possible experimental realization of this scheme.
ISSN:2469-9888
2469-9888
DOI:10.1103/PhysRevAccelBeams.19.090701