Review of coherent SASE schemes

Campbell, Lawrence and Dunning, David and Henderson, James Robert and McNeil, Brian and Thompson, Neil (2014) Review of coherent SASE schemes. In: 36th International Free Electron Laser Conference, 2014-08-25 - 2014-08-29.

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Abstract

A review of some methods that have recently been proposed to improve the temporal coherence of SASE output is presented. These methods do not require any external laser seed field, or the use of the so-called self-seeding methods, where the SASE radiation is optically filtered and improved at an early stage of the interaction before re-injection and amplification to saturation. By using methods that introduce an additional relative propagation between the electron beam and the radiation field, the localised collective interaction, which leads to the formation of the ‘spiking’ associated with normal SASE output, is removed. The result is output pulses which are close to the fourier transform limit without the need for any external seeds or intermediate optics. We acknowledge STFC MoA 4132361; ARCHIE-WeSt HPC, EPSRC grant EP/K000586/1; John von Neumann Institute for Computing (NIC) on JUROPA at Julich Supercomputing Centre (JSC), under project HHH20.

ORCID iDs

Campbell, Lawrence ORCID logoORCID: https://orcid.org/0000-0003-1375-1551, Dunning, David, Henderson, James Robert, McNeil, Brian ORCID logoORCID: https://orcid.org/0000-0002-7267-611X and Thompson, Neil;
  • Item type:Conference or Workshop Item(Paper)
    ID code:49389
    Dates:
    Date
    Event
    August 2014
    Published
    Notes:Presented at FEL 2014 by Brian McNeil.
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:26 Sep 2014 13:24
    Last modified:11 Nov 2024 16:42
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/49389
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