Mode locking in a free-electron laser amplifier

Thompson, N R and McNeil, B W J (2008) Mode locking in a free-electron laser amplifier. Physical Review Letters, 100 (20). 203901. ISSN 1079-7114 (https://doi.org/10.1103/PhysRevLett.100.203901)

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Abstract

A technique is proposed to generate attosecond pulse trains of radiation from a free-electron laser amplifier. The optics-free technique synthesizes a comb of longitudinal modes by applying a series of spatiotemporal shifts between the copropagating radiation and electron bunch in the free-electron laser. The modes may be phase locked by modulating the electron beam energy at the mode spacing frequency. Three-dimensional simulations demonstrate the generation of a train of 400 as pulses at gigawatt power levels evenly spaced by 2.5 fs at a wavelength of 124 A. In the x-ray at wavelength 1.5 A, trains of 23 as pulses evenly spaced by 150 as and of peak power up to 6 GW are predicted.

ORCID iDs

Thompson, N R and McNeil, B W J ORCID logoORCID: https://orcid.org/0000-0002-7267-611X;
  • Item type:Article
    ID code:19658
    Dates:
    Date
    Event
    21 May 2008
    Published
    Keywords:optical klystron, pulses, fel, free-electron laser, mode locking, Optics. Light, Physics and Astronomy(all)
    Subjects:Science > Physics > Optics. Light
    Department:Faculty of Science > Physics
    Depositing user: Strathprints Administrator
    Date deposited:04 Jun 2010 15:46
    Last modified:04 Aug 2023 00:15
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/19658
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