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Single-shot transverse coherence in seeded and unseeded free-electron lasers: A comparison

Pop, Mihai (author)
Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
Allaria, E.M. (author)
Elettra Sincrotrone Trieste
Curbis, Francesca (author)
Lund University,Lunds universitet,MAX IV-laboratoriet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,MAX IV Laboratory,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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Geloni, Gianluca (author)
European XFEL GmbH
Di Mitri, S. (author)
Elettra Sincrotrone Trieste
Foglia, L. (author)
Elettra Sincrotrone Trieste
Grazella, D. (author)
University of Paris-Saclay
Gianessi, Luca (author)
Elettra Sincrotrone Trieste
Mahieu, B. (author)
ENSTA ParisTech
Mahne, N. (author)
CNR Istituto Officina dei Materiali (IOM)
Mirian, N. (author)
Elettra Sincrotrone Trieste
Penco, G. (author)
Elettra Sincrotrone Trieste
Perosa, G. (author)
Elettra Sincrotrone Trieste
Ribic, P.R. (author)
Elettra Sincrotrone Trieste
Simoncig, A. (author)
Elettra Sincrotrone Trieste
Spampinati, S. (author)
Elettra Sincrotrone Trieste
Manfreda, M. (author)
Elettra Sincrotrone Trieste
Spezzani, C. (author)
Elettra Sincrotrone Trieste
Trovo, M. (author)
Elettra Sincrotrone Trieste
Werin, Sverker (author)
Lund University,Lunds universitet,MAX IV-laboratoriet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,MAX IV Laboratory,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
Zagrando, M. (author)
Elettra Sincrotrone Trieste
De Ninno, Giovanni (author)
University of Nova Gorica,Elettra Sincrotrone Trieste
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 (creator_code:org_t)
2022
2022
English.
In: Physical Review Accelerators and Beams. - 2469-9888. ; 25:040701
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • The advent of x-ray free-electron lasers (FELs) drastically enhanced the capabilities of several analytical techniques, for which the degree of transverse (spatial) coherence of the source is essential. FELs can be operated in self-amplified spontaneous emission (SASE) or seeded configurations, which rely on a qualitatively different initialization of the amplification process leading to light emission. The degree of transverse coherence of SASE and seeded FELs has been characterized in the past, both experimentally and theoretically. However, a direct experimental comparison between the two regimes in similar operating conditions is missing, as well as an accurate study of the sensitivity of transverse coherence to key working parameters. In this paper, we carry out such a comparison, focusing in particular on the evolution of coherence during the light amplification process.

Subject headings

NATURVETENSKAP  -- Fysik -- Acceleratorfysik och instrumentering (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Accelerator Physics and Instrumentation (hsv//eng)
NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)

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