A wide bandwidth free-electron laser with mode locking using current modulation

Kur, E and Dunning, D J and McNeil, B W J and Wurtele, J and Zholents, A A (2011) A wide bandwidth free-electron laser with mode locking using current modulation. New Journal of Physics, 13. 063012. ISSN 1367-2630 (https://doi.org/10.1088/1367-2630/13/6/063012)

[thumbnail of NJP.pdf]
Preview
 PDF. Filename: NJP.pdf
Final Published Version
Download (1MB)| Preview

Abstract

A new scheme for mode locking a free-electron laser (FEL) amplifier is proposed based on electron beam current modulation. It is found that certain properties of the original concept (Thompson and McNeil 2008 Phys. Rev. Lett. 100 203901), based on the energy modulation of electrons, are improved, including the spectral brightness of the source and the purity of the series of short pulses. Numerical comparisons are made between the new and old schemes and between a mode-locked FEL and a self-amplified spontaneous emission FEL. Illustrative examples using a hypothetical mode-locked FEL amplifier are provided. The ability to generate intense coherent radiation with a large bandwidth is demonstrated.

ORCID iDs

Kur, E, Dunning, D J, McNeil, B W J ORCID logoORCID: https://orcid.org/0000-0002-7267-611X, Wurtele, J and Zholents, A A;
  • Item type:Article
    ID code:31801
    Dates:
    Date
    Event
    8 June 2011
    Published
    Notes:Appeared as feature in 'Research Highlights' section of Nature Photonics: David Pile, 'Mode-locking X-rays', Nature Photonics 5, 513 (2011) - see DOI link above. Published as IoP Select: a special collection of journal articles, chosen by the Editors based on one or more of the following criteria: *Substantial advances or significant breakthroughs *A high degree of novelty *Significant impact on future research
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:15 Jun 2011 15:53
    Last modified:11 Nov 2024 09:47
    URI:https://strathprints.strath.ac.uk/id/eprint/31801
CORE (COnnecting REpositories)