High-intensity X-ray pump-monochromatic X-ray probe technique across time zero
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.
Authors
- Taito Osaka (ORCID: https://orcid.org/0000-0003-0545-9737)
- Toru Hara (ORCID: https://orcid.org/0000-0002-9715-6444)
- Yuichi Inubushi (ORCID: https://orcid.org/0000-0003-1608-3819)
- Victor Tkachenko (ORCID: https://orcid.org/0000-0002-0245-145X)
- Konrad Jerzy Kapcia (ORCID: https://orcid.org/0000-0001-8842-1886)
- Beata Ziaja (ORCID: https://orcid.org/0000-0003-0172-0731)
- Eiji Nishibori (ORCID: https://orcid.org/0000-0002-4192-6577)
- Makina Yabashi (ORCID: https://orcid.org/0000-0002-2472-1684)
- Ichiro Inoue
Institutions
- University of Tsukuba (JP)
- Deutsches Elektronen-Synchrotron DESY (DE)
- Japan Synchrotron Radiation Research Institute (JP)
- Adam Mickiewicz University in Poznań (PL)
- European X-Ray Free-Electron Laser (DE)
- Polish Academy of Sciences (PL)
Publication Details
- Journal
- Optica
- Published
- 2025-03-18
- DOI
- https://doi.org/10.1364/optica.555433
- Primary Topic
- Advanced X-ray Imaging Techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.00