Spatial coherence determination from the Fourier analysis of a resonant soft X-ray magnetic speckle pattern
2016 (English)In: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 24, no 20, 23162-23176 p.Article in journal (Refereed) Published
We present a method to determine the two-dimensional spatial coherence of synchrotron radiation in the soft X-ray regime by analyzing the Fourier transform of the magnetic speckle pattern from a ferromagnetic film in a multidomain state. To corroborate the results, a Young's double-pinhole experiment has been performed. The transverse coherence lengths in vertical and horizontal direction of both approaches are in a good agreement. The method presented here is simple and gives a direct access to the coherence properties of synchrotron radiation without nanostructured test objects.
Place, publisher, year, edition, pages
Optical Society of America, 2016. Vol. 24, no 20, 23162-23176 p.
Critical currents, Ferromagnetic materials, Fourier analysis, Synchrotron radiation, Synchrotrons, Coherence properties, Ferromagnetic films, Magnetic speckles, Multi domains, Nano-structured, Spatial coherence, Test object, Transverse coherence, Speckle
IdentifiersURN: urn:nbn:se:kth:diva-195259DOI: 10.1364/OE.24.023162ISI: 000387543000079ScopusID: 2-s2.0-84989895771OAI: oai:DiVA.org:kth-195259DiVA: diva2:1046853
FunderKnut and Alice Wallenberg Foundation
QC 201611152016-11-152016-11-022017-01-10Bibliographically approved