University of Oulu

Serkez, S., Decking, W., Froehlich, L., Gerasimova, N., Grünert, J., Guetg, M., … Geloni, G. (2020). Opportunities for Two-Color Experiments in the Soft X-ray Regime at the European XFEL. Applied Sciences, 10(8), 2728. doi:10.3390/app10082728

Opportunities for two-color experiments in the soft X-ray regime at the European XFEL

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Author: Serkez, Svitozar1; Decking, Winfried2; Froehlich, Lars2;
Organizations: 1European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
2Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
3Nano and Molecular Systems Research Unit, University of Oulu, P.O.Box 3000, FI-90014 Oulu, Finland
4Department of Physics and Astronomy, University of Turku, FI-20014 Turun yliopisto, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 5.8 MB)
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Language: English
Published: Multidisciplinary Digital Publishing Institute, 2020
Publish Date: 2020-06-16


X-ray pump/X-ray probe applications are made possible at X-ray Free Electron Laser (XFEL) facilities by generating two X-ray pulses with different wavelengths and controllable temporal delay. In order to enable this capability at the European XFEL, an upgrade project to equip the soft X-ray SASE3 beamline with a magnetic chicane is underway. In the present paper we describe the status of the project, its scientific focus and expected performance, including start-to-end simulations of the photon beam transport up to the sample, as well as recent experimental results demonstrating two-color lasing at photon energies of 805 eV + 835 eV and 910 eV + 950 eV. Additionally, we discuss methods to analyze the spectral properties and the intensity of the generated radiation to provide on-line diagnostics for future user experiments.

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Series: Applied sciences
ISSN: 2076-3417
ISSN-E: 2076-3417
ISSN-L: 2076-3417
Volume: 10
Issue: 8
Article number: 2728
DOI: 10.3390/app10082728
Type of Publication: A1 Journal article – refereed
Field of Science: 114 Physical sciences
Copyright information: © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (