Attosecond x-ray free-electron lasers
ORAL · Invited
Abstract
High-harmonic generation has revolutionized ultrafast science, creating the experimental basis for a new field of investigation: attosecond science and technology.
With the development of attosecond pulses at the Linac Coherent Light Source (LCLS), XFELs have emerged as the brightest sources of attosecond x-ray pulses, with a peak brightness that surpasses table-top high-harmonic generation by seven orders of magnitude in the soft x-ray region. In my talk I will discuss the development of attosecond x-ray science capabilities at the LCLS and other XFEL facilities: from the first demonstration of isolated attosecond pulses to the observation of electronic dynamics with two-color pump/probe experiments. Finally, I will discuss the future of attosecond XFELs and the unique opportunities enabled by the high-repetition rate LCLS-II upgrade and advanced plasma-based electron sources.
With the development of attosecond pulses at the Linac Coherent Light Source (LCLS), XFELs have emerged as the brightest sources of attosecond x-ray pulses, with a peak brightness that surpasses table-top high-harmonic generation by seven orders of magnitude in the soft x-ray region. In my talk I will discuss the development of attosecond x-ray science capabilities at the LCLS and other XFEL facilities: from the first demonstration of isolated attosecond pulses to the observation of electronic dynamics with two-color pump/probe experiments. Finally, I will discuss the future of attosecond XFELs and the unique opportunities enabled by the high-repetition rate LCLS-II upgrade and advanced plasma-based electron sources.
*This work was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE-AC02-76SF00515
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Publication: Duris, Joseph, et al. "Tunable isolated attosecond X-ray pulses with gigawatt peak power from a free-electron laser." Nature Photonics 14.1 (2020): 30-36.
Li, Siqi, et al. "Attosecond coherent electron motion in Auger-Meitner decay." Science 375.6578 (2022): 285-290.
Guo, Zhaoheng, et al. "Experimental Demonstration of Attosecond Pump-Probe Spectroscopy with an X-ray Free-Electron Laser." arXiv preprint arXiv:2401.15250 (2024).
Presenters
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Agostino Marinelli
- SLAC - Natl Accelerator Lab
- SLAC National Accelerator Laboratory
- SLAC NATIONAL ACCELERATOR LABORATORY