Nature Communications (Jan 2021)

Measuring the frequency chirp of extreme-ultraviolet free-electron laser pulses by transient absorption spectroscopy

  • Thomas Ding,
  • Marc Rebholz,
  • Lennart Aufleger,
  • Maximilian Hartmann,
  • Veit Stooß,
  • Alexander Magunia,
  • Paul Birk,
  • Gergana Dimitrova Borisova,
  • David Wachs,
  • Carina da Costa Castanheira,
  • Patrick Rupprecht,
  • Yonghao Mi,
  • Andrew R. Attar,
  • Thomas Gaumnitz,
  • Zhi-Heng Loh,
  • Sebastian Roling,
  • Marco Butz,
  • Helmut Zacharias,
  • Stefan Düsterer,
  • Rolf Treusch,
  • Arvid Eislage,
  • Stefano M. Cavaletto,
  • Christian Ott,
  • Thomas Pfeifer

DOI
https://doi.org/10.1038/s41467-020-20846-1
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 7

Abstract

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Free-electron laser pulses generated from self-amplification of spontaneous emission scheme vary from one another in their characteristics. Here the authors demonstrate a transient absorption spectroscopy method to characterize the frequency chirp of the FEL pulses.