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

Bryant Garcia, Erik Hemsing, Tor Raubenheimer, Lawrence T. Campbell, Brian W. J. McNeil

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)
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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.
Original languageEnglish
Article number090701
Number of pages15
JournalPhysical Review Accelerators and Beams
Publication statusPublished - 6 Sept 2016


  • few-cycle coherent radiation
  • pulse train
  • radiation pulse
  • free-electron laser


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