Developments for ultrafast time-resolved experiments at SACLA

by Tetsuo Katayama (SACLA, JASRI)

Thursday 26 Feb 2015, 11:00 → 12:00 Europe/Berlin

AER19/3.11 (European XFEL GmbH)

XFELs have attracted a variety of scientific interests with novel light-source properties: an unprecedented peak power, an excellent transverse coherence, and femtoseconds pulse duration. These unique capabilities are useful for researches of nonlinear optics, structural biology, and ultrafast chemistry. We introduce the scientific application of XFELs for ultrafast x-ray time-resolved measurements. We developed time-resolved x-ray absorption spectroscopy applied for studies of ultrafast dynamics in the femtoseconds time-scale [1,2]. To achieve higher time resolution, we conducted efficient timing evaluation. The beam-splitting scheme will enable the simultaneous utilization of this timing tool with user experiments. Future perspective includes the updates of beamline instruments (BL3 of SACLA), such as optional monochromator at EH1 and X-ray lens at EH2. We will also develop x-ray pump x-ray probe scheme for jitter-less time-resolved x-ray measurements. [1] T. Katayama et al., Appl. Phys. Lett. 103, 131105 (2013) [2] Y. Obara et al., Opt. Express 22, 1105 (2014)