%0 Journal Article
%A Inoue, Ichiro
%A Osaka, Taito
%A Tkachenko, Victor
%A Hara, Toru
%A Kapcia, Konrad J.
%A Inubushi, Yuichi
%A Kawaguchi, Shogo
%A Yamada, Jumpei
%A Nishibori, Eiji
%A Yabashi, Makina
%A Ziaja, Beata
%T High-intensity X-ray pump-monochromatic X-ray probe technique across time zero
%J Optica
%V 12
%N 4
%@ 2334-2536
%C Washington, DC
%I Optica
%M PUBDB-2025-01365
%P 530 - 533
%D 2025
%Z Waiting for fulltext 
%X A femtosecond pump–probe technique, capable of probing transient changes in intense X-ray-excited matter with monochromatic X-ray pulses and accessing data for both positive and negative delay times, is proposed. The application of this technique to single-crystal silicon revealed ultrafast X-ray-induced electron excitation occurring on a timescale of 10 fs, along with the delayed onset of atomic disordering relative to the electronic excitation. This technique will pave the way for atom-specific multidimensional spectroscopy and diagnostics of exotic states of matter created by X-ray irradiation with sophisticated probing techniques, such as single-crystal diffraction, inelastic scattering, X-ray Thomson scattering, and absorption spectroscopy. 
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:001479087000007
%R 10.1364/OPTICA.555433
%U https://bib-pubdb1.desy.de/record/626290