Jitter-correction for IR/UV-XUV pump-probe experiments at the FLASH free-electron laser

Research output: Contribution to journalArticle


In pump-probe experiments employing a free-electron laser (FEL) in combination with a synchronized optical femtosecond laser, the arrival-time jitter between the FEL pulse and the optical laser pulse often severely limits the temporal resolution that can be achieved. Here, we present a pump-probe experiment on the UV-induced dissociation of 2,6-difluoroiodobenzene (C6H3F2I) molecules performed at the FLASH FEL that takes advantage of recent upgrades of the FLASH timing and synchronization system to obtain high-quality data that are not limited by the FEL arrival-time jitter. We discuss in detail the necessary data analysis steps and describe the origin of the time-dependent effects in the yields and kinetic energies of the fragment ions that we observe in the experiment.


  • Evgeny Savelyev
  • Rebecca Boll
  • Cédric Bomme
  • Nora Schirmel
  • Harald Redlin
  • Benjamin Erk
  • Stefan Düsterer
  • Erland Müller
  • Hauke Höppner
  • Sven Toleikis
  • Jost Müller
  • Marie Kristin Czwalinna
  • Rolf Treusch
  • Thomas Kierspel
  • Terence Mullins
  • Sebastian Trippel
  • Joss Wiese
  • Jochen Küpper
  • Felix Brausse
  • Faruk Krecinic
  • Arnaud Rouzée
  • Piotr Rudawski
  • Kasra Amini
  • Alexandra Lauer
  • Michael Burt
  • Mark Brouard
  • Lauge Christensen
  • Jan Thøgersen
  • Henrik Stapelfeldt
  • Nora Berrah
  • Maria Müller
  • Anatoli Ulmer
  • Simone Techert
  • Artem Rudenko
  • Daniel Rolles
External organisations
  • German Electron Synchrotron (DESY)
  • University of Hamburg
  • University of Oxford
  • University of Connecticut
  • Technical University of Berlin
  • Max Planck Institute for Biophysical Chemistry
  • University of Göttingen
  • Kansas State University
  • Carl von Ossietzky University of Oldenburg
  • Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy
  • Aarhus University
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Atom and Molecular Physics and Optics


  • free-electron laser, photodissociation, pump-probe experiments, time-resolved ion imaging, velocity map imaging
Original languageEnglish
Article number043009
JournalNew Journal of Physics
Issue number4
Publication statusPublished - 2017 Apr 1
Publication categoryResearch