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  Direct 2D spatial-coherence determination using the Fourier-analysis method: multi-parameter characterization of the P04 beamline at PETRA III

Bagschik, K., Wagner, J., Buß, R., Riepp, M., Philippi-Kobs, A., Müller, L., et al. (2020). Direct 2D spatial-coherence determination using the Fourier-analysis method: multi-parameter characterization of the P04 beamline at PETRA III. Optics Express, 28(5), 7282-7300. doi:10.1364/OE.382608.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0005-F685-F Version Permalink: https://hdl.handle.net/21.11116/0000-000E-8285-8
Genre: Journal Article

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© 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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 Creators:
Bagschik, Kai1, Author
Wagner, Jochen2, Author
Buß, Ralph2, 3, Author
Riepp, Matthias1, Author
Philippi-Kobs, André1, Author
Müller, Leonard1, 4, Author
Buck, Jens5, Author
Trinter, Florian1, 6, Author                 
Scholz, Frank1, Author
Seltmann, Jörn1, Author
Hoesch, Moritz1, Author
Viefhaus, Jens7, Author
Grübel, Gerhard1, 3, Author
Oepen, Hans Peter2, 3, Author
Frömter, Robert2, 3, Author
Affiliations:
1Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany, ou_persistent22              
2INF, Universität Hamburg, CHyN, Luruper Chaussee 149, 22761 Hamburg, Germany, ou_persistent22              
3The Hamburg Centre for Ultrafast Imaging, Luruper Chaussee 149, 22761 Hamburg, Germany , ou_persistent22              
4Department of Physics, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany , ou_persistent22              
5Institut für Experimentelle und Angewandte Physik, Leibnizstraße 19, 24098 Kiel, Germany, ou_persistent22              
6Molecular Physics, Fritz Haber Institute, Max Planck Society, ou_634545              
7Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 15, 12489 Berlin, Germany, ou_persistent22              

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 Abstract: We present a systematic 2D spatial-coherence analysis of the soft-X-ray beamline P04 at PETRA III for various beamline configurations. The influence of two different beam-defining apertures on the spatial coherence properties of the beam is discussed and optimal conditions for coherence-based experiments are found. A significant degradation of the spatial coherence in the vertical direction has been measured and sources of this degradation are identified and discussed. The Fourier-analysis method, which gives fast and simple access to the 2D spatial coherence function of the X-ray beam, is used for the experiment. Here, we exploit the charge scattering of a disordered nanodot sample allowing the use of arbitrary X-ray photon energies with this method.

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Language(s): eng - English
 Dates: 2019-11-062020-01-272020-03-022020-03
 Publication Status: Issued
 Pages: 19
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1364/OE.382608
 Degree: -

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Title: Optics Express
  Abbreviation : Opt. Express
Source Genre: Journal
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Publ. Info: Washington, DC : Optical Society of America
Pages: 19 Volume / Issue: 28 (5) Sequence Number: - Start / End Page: 7282 - 7300 Identifier: ISSN: 1094-4087
CoNE: https://pure.mpg.de/cone/journals/resource/954925609918