Few-cycle pulse generation in an X-ray free-electron laser

Dunning, David and McNeil, Brian and Thompson, Neil (2013) Few-cycle pulse generation in an X-ray free-electron laser. Physical Review Letters, 110 (10). 104801. ISSN 1079-7114 (https://doi.org/10.1103/PhysRevLett.110.104801)

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Abstract

A method is proposed to generate trains of few-cycle x-ray pulses from a Free-Electron Laser (FEL) amplifier via a compact `afterburner' extension consisting of several few-period undulator sections separated by electron chicane delays. Simulations show that in the hard x-ray (wavelength 0.1 nm; photon energy 10 keV) and with peak powers approaching normal FEL saturation (GW) levels, root mean square pulse durations of 700 zeptoseconds may be obtained. This is approximately two orders of magnitude shorter than that possible for normal FEL amplifier operation. The spectrum is discretely multichromatic with a bandwidth envelope increased by approximately two orders of magnitude over un-seeded FEL amplifier operation. Such a source would significantly enhance research opportunity in atomic dynamics, and push capability towards nuclear dynamics.

  • Item type:Article
    ID code:42729
    Dates:
    Date
    Event
    5 March 2013
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:04 Feb 2013 16:46
    Last modified:08 Apr 2024 20:19
    URI:https://strathprints.strath.ac.uk/id/eprint/42729
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