Time-resolved soft X-ray absorption spectroscopy in transmission mode on 
liquids at MHz repetition rates

Fondell, M.; Eckert, S.; Jay, R. M.; Weniger, C.; Quevedo, W.; Niskanen, J.; Kennedy, B.; Sorgenfrei, F.; Schick, D.; Giangrisostomi, E.; Ovsyannikov, R.; Adamczyk, K.; Huse, N.; Wernet, P.; Mitzner, R.; Föhlisch, A.

doi:10.1063/1.4993755

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Time-resolved soft X-ray absorption spectroscopy in transmission mode on liquids at MHz repetition rates

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Huse, N.
Ultrafast Molecular Dynamics, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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Citation

Fondell, M., Eckert, S., Jay, R. M., Weniger, C., Quevedo, W., Niskanen, J., et al. (2017). Time-resolved soft X-ray absorption spectroscopy in transmission mode on liquids at MHz repetition rates. Structural Dynamics, 4(5): 054902. doi:10.1063/1.4993755.

Cite as: https://hdl.handle.net/21.11116/0000-0002-4F1C-8

Abstract

We present a setup combining a liquid flatjet sample delivery and a MHz laser system for time-resolved soft X-ray absorption measurements of liquid samples at the high brilliance undulator beamline UE52-SGM at Bessy II yielding unprecedented statistics in this spectral range. We demonstrate that the efficient detection of transient absorption changes in transmission mode enables the identification of photoexcited species in dilute samples. With iron(II)-trisbipyridine in aqueous solution as a benchmark system, we present absorption measurements at various edges in the soft X-ray regime. In combination with the wavelength tunability of the laser system, the set-up opens up opportunities to study the photochemistry of many systems at low concentrations, relevant to materials sciences, chemistry, and biology.