Polarization control with an X-ray phase retarder for high-time-resolution pump-probe experiments at SACLA

Y. Kubota, M. Suzuki, T. Katayama, K. Yamamoto, K. Tono, Y. Inubushi, T. Seki, K. Takanashi, H. Wadati, M. Yabashib

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Control of the polarization of an X-ray free-electron laser (XFEL) has been performed using an X-ray phase retarder (XPR) in combination with an arrival timing diagnostic on BL3 of the SPring-8 Angstrom Compact free-electron LAser (SACLA). To combine with the timing diagnostic, a pink beam was incident on the XPR crystal and then monochromated in the vicinity of samples. A high degree of circular polarization of 97% was obtained experimentally at 11.567 keV, which agreed with calculations based on the dynamical theory of X-ray diffraction. This system enables pump-probe experiments to be operated using circular polarization with a time resolution of 40 fs to investigate ultrafast magnetic phenomena.

Original languageEnglish
Pages (from-to)1139-1143
Number of pages5
JournalJournal of Synchrotron Radiation
Volume26
DOIs
Publication statusPublished - 2019 Jul 1

Keywords

  • Dynamical theory of diffraction
  • Polarization
  • X-ray free-electron lasers

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Instrumentation

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