Record Details

Title:
Spatio-temporal coherence of free-electron laser radiation in the extreme ultraviolet determined by a Michelson interferometer
Affiliation(s):
EuXFEL staff, Other
Author group:
Instrument HED
Topic:
Abstract:
A key feature of extreme ultraviolet (XUV) radiation from free-electron lasers (FELs) is its spatial and temporal coherence. We measured the spatio-temporal coherence properties of monochromatized FEL pulses at 13.5 nm using a Michelson interferometer. A temporal coherence time of (59±8) fs has been determined which is in good agreement with the spectral bandwidth given by the monochromator. Moreover, the spatial coherence in vertical direction amounts to about 15% of the beam diameter and about 12% in horizontal direction. The feasibility of measuring spatio-temporal coherence properties of XUV FEL radiation using interferometric techniques advances machine operation and experimental studies significantly.
Imprint:
Melville, NY, American Institute of Physics, 2014
Journal Information:
Appl. Phys. Lett., 105, 10, 101102 (2014)
ISSN:
1077-3118
0003-6951
Related external records:
DOI: 10.1063/1.4895455
WOS: WOS:000342758700002
Language(s):
English


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 Record created 2016-10-11, last modified 2019-02-08

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