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 XeF2 molecules following X-ray absorption at the Xe site.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Picón A,Lehmann CS,Bostedt C,Rudenko A,Marinelli A,Osipov T,Rolles D,Berrah N,Bomme C,Bucher M,Doumy G,Erk B,Ferguson KR,Gorkhover T,Ho PJ,Kanter EP,Krässig B,Krzywinski J,Lutman AA,March AM,Moonshiram D,Ray D,doi
10.1038/ncomms11652subject
Has Abstractpub_date
2016-05-23 00:00:00pages
11652issn
2041-1723pii
ncomms11652journal_volume
7pub_type
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