High spatial coherence and short pulse duration revealed by the Hanbury Brown and Twiss interferometry at the European XFEL.
Journal
Structural dynamics (Melville, N.Y.)
ISSN: 2329-7778
Titre abrégé: Struct Dyn
Pays: United States
ID NLM: 101660872
Informations de publication
Date de publication:
Jul 2021
Jul 2021
Historique:
received:
08
07
2021
accepted:
03
08
2021
entrez:
3
9
2021
pubmed:
4
9
2021
medline:
4
9
2021
Statut:
epublish
Résumé
Second-order intensity interferometry was employed to study the spatial and temporal properties of the European X-ray Free-Electron Laser (EuXFEL). Measurements were performed at the soft x-ray Self-Amplified Spontaneous Emission (SASE3) undulator beamline at a photon energy of 1.2 keV in the Self-Amplified Spontaneous Emission (SASE) mode. Two high-power regimes of the SASE3 undulator settings, i.e., linear and quadratic undulator tapering at saturation, were studied in detail and compared with the linear gain regime. The statistical analysis showed an exceptionally high degree of spatial coherence up to 90% for the linear undulator tapering. Analysis of the measured data in spectral and spatial domains provided an average pulse duration of about 10 fs in our measurements. The obtained results will be valuable for the experiments requiring and exploiting short pulse duration and utilizing high coherence properties of the EuXFEL.
Identifiants
pubmed: 34476285
doi: 10.1063/4.0000127
pii: 4.0000127
pmc: PMC8384452
doi:
Types de publication
Journal Article
Langues
eng
Pagination
044305Informations de copyright
© 2021 Author(s).
Références
Phys Rev Lett. 1992 May 4;68(18):2759-2761
pubmed: 10045485
Sci Rep. 2015 Nov 27;5:17193
pubmed: 26610328
IUCrJ. 2018 Sep 18;5(Pt 6):727-736
pubmed: 30443357
Phys Rev Lett. 2013 Jul 19;111(3):034802
pubmed: 23909331
Phys Rev Lett. 2016 Dec 2;117(23):239903
pubmed: 27982658
Phys Rev Lett. 2011 Sep 30;107(14):144801
pubmed: 22107200
Science. 2007 Jun 8;316(5830):1444-8
pubmed: 17556577
J Opt Soc Am A Opt Image Sci Vis. 2005 Aug;22(8):1536-45
pubmed: 16134848
Phys Rev Lett. 2012 Jan 13;108(2):024801
pubmed: 22324689
J Synchrotron Radiat. 2019 Nov 1;26(Pt 6):1851-1862
pubmed: 31721727
Opt Express. 2012 Jul 30;20(16):17480-95
pubmed: 23038301
Sci Rep. 2019 Mar 1;9(1):3300
pubmed: 30824784
Sci Rep. 2018 Feb 2;8(1):2219
pubmed: 29396400
Nat Commun. 2018 Oct 29;9(1):4498
pubmed: 30374062
IUCrJ. 2020 Oct 15;7(Pt 6):1102-1113
pubmed: 33209321