SKM 2023 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 37: Poster: Ultrafast Electron Dynamics at Surface and Interfaces II
O 37.9: Poster
Dienstag, 28. März 2023, 18:00–20:00, P2/EG
Ultrafast UV pulse generation at the SXP instrument of the European XFEL — •Ekaterina Tikhodeeva1, Patrik Grychtol1, Marcus Seidel2, Christoph M. Heyl2, Vahagn Vardanyan1, David Doblas-Jimenez1, and Manuel Izquierdo1 — 1European XFEL, Schenefeld, Germany — 2DESY, Hamburg, Germany
At the European XFEL a new instrument, the Soft X-ray Port (SXP), is currently under commissioning. Located downstream of the SASE 3 soft X-ray undulator system, it will provide femtosecond photon pulses with variable polarization in the energy range between 260 eV and 3000 eV at MHz repetition rates. Up to 1012 photons per pulse will be focus at the interaction region in a micrometer spot size resulting in an intensity of more than 1018 W/cm2. The energy range will enable the complete electronical, chemical and atomic characterization of solids, surfaces and interfaces using femtosecond time-resolved soft X-ray photo-electron spectroscopy. Moreover, two powerful pump lasers operating in a broad spectral range from the mid-infrared to the ultraviolet region will be available. Herriott multi-pass cells (HMPC) will be used to compress their pulses into the few femtosecond range paving the way for ultrafast pump-probe investigations at the SXP instrument combining intense and tunable soft X-rays with the versatile optical lasers. In this contribution, the development of the HMCP and the optical laser system will be presented.