Femtosecond soft X-ray absorption spectroscopy of warm dense matter at the PAL-XFEL
SCIE
SCOPUS
- Title
- Femtosecond soft X-ray absorption spectroscopy of warm dense matter at the PAL-XFEL
- Authors
- LEE, JONG-WON; Kang G.; Kim M.; Kim M.; PARK, SANG HAN; KWON, SOONNAM; Yanga S.; Cho B.I.
- Date Issued
- 2020-07
- Publisher
- Blackwell Publishing Inc.
- Abstract
- Free-electron laser pulse-based X-ray absorption spectroscopy measurements on warm dense copper are presented. The incident X-ray pulse energies were measured with a detector assembly consisting of a photocathode membrane and microchannel plates, and the transmitted energies were measured simultaneously with a photodiode detector. The precision of the absorption measurements was evaluated. For a warm dense copper foil irradiated by an intense femtosecond laser pulse, the enhanced X-ray absorption below the L 3-edge, followed by the rapid evolution of highly excited Fermi liquid within a picosecond, were successfully measured. This result demonstrates a unique capability to study femtosecond non-equilibrium electron-hole dynamics in extreme states of matter.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/109202
- DOI
- 10.1107/S160057752000524X
- ISSN
- 0909-0495
- Article Type
- Article
- Citation
- Journal of Synchrotron Radiation, vol. 27, page. 953 - 958, 2020-07
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- There are no files associated with this item.
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