Journal Article

PUBDB-2016-06082

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Hetero-site-specific X-ray pump-probe spectroscopy for femtosecond intramolecular dynamics

Picón, A. (Corresponding author) ; Lehmann, C. S. ; Bostedt, C. ; Rudenko, A. ; Marinelli, A. ; Osipov, T. ; Rolles, D.Extern*DESY* ; Berrah, N. ; Bomme, C.DESY* ; Bucher, M. ; Doumy, G. ; Erk, B.DESY* ; Ferguson, K. R. ; Gorkhover, T. ; Ho, P. J. ; Kanter, E. P. ; Krässig, B. ; Krzywinski, J. ; Lutman, A. A. ; March, A. M. ; Moonshiram, D. ; Ray, D. ; Young, L. ; Pratt, S. T. ; Southworth, S. H.

2016
Nature Publishing Group London

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Please use a persistent id in citations: doi:10.1038/ncomms11652  doi:10.3204/PUBDB-2016-06082

Abstract: New capabilities at X-ray free-electron laser facilities allow the generation of two-colour femtosecond X-ray pulses, opening the possibility of performing ultrafast studies of X-ray-induced phenomena. Particularly, the experimental realization of hetero-site-specific X-ray-pump/X-ray-probe spectroscopy is of special interest, in which an X-ray pump pulse is absorbed at one site within a molecule and an X-ray probe pulse follows the X-ray-induced dynamics at another site within the same molecule. Here we show experimental evidence of a hetero-site pump-probe signal. By using two-colour 10-fs X-ray pulses, we are able to observe the femtosecond time dependence for the formation of F ions during the fragmentation of XeF$_2$ molecules following X-ray absorption at the Xe site.

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Contributing Institute(s):

1. Strukturdynamik Chemischer Systeme (FS-SCS)
2. FLASH Wissenschaftlicher Nutzerbetrieb (FS-FLASH-O)

Research Program(s):

1. 6211 - Extreme States of Matter: From Cold Ions to Hot Plasmas (POF3-621) (POF3-621)

Experiment(s):

1. Measurement at external facility

Appears in the scientific report 2016

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