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FEL2026 - 42nd International Free Electron Laser Conference

23–28 Aug 2026
America/Los_Angeles timezone

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Session

Science Applications (Invited)

WEY
26 Aug 2026, 10:30

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  1. 143. Damage-free diffraction and spectroscopy with attosecond hard X-ray pulses (WEY01)
    Ichiro Inoue (The University of Tokyo)
    26/08/2026, 10:30
    Session 13: Science Applications
    Invited Oral Presentation

    We report on the realization of damage-free diffraction and spectroscopy using attosecond hard X-ray pulses from LCLS, European XFEL, and SACLA. By compressing the X-ray pulse duration to the attosecond regime, X-ray–induced electronic and structural damage is effectively suppressed during the interaction, enabling the probing of pristine atomic structures and electronic states in matter. We...

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  2. 160. Coherent nonlinear X-ray four-photon interaction with core-shell electrons (WEY02)
    Gregor Knopp (Paul Scherrer Institute)
    26/08/2026, 10:55
    Session 13: Science Applications
    Invited Oral Presentation

    Coherent nonlinear light–matter interaction with X-rays gives access to a regime in ultrafast spectroscopy in which atomic resolution meets femtosecond and attosecond timescales. Particularly X-ray four-wave mixing, involving several resonant transitions in a single coherent nonlinear process, has the potential to provide information on the electronic states coupling, coherent electron...

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  3. 193. Nanoscale Polarization Transient Gratings (WEY03)
    Laura Foglia (Elettra-Sincrotrone Trieste S.C.p.A.)
    26/08/2026, 11:20
    Session 13: Science Applications
    Invited Oral Presentation

    Progress in nanoscience increasingly depends on our ability to control light at spatial and temporal scales matching those characteristic of nanostructures. In particular, controlling the polarization of light is essential for investigating materials whose properties depend not only on light intensity, but also on the specific orientation of the electric field. Such polarization-sensitive...

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  4. 187. Progress in soft X-ray Science with High Repetition Rate FELs (WEY04)
    Taran Driver (SLAC National Accelerator Laboratory)
    26/08/2026, 11:45
    Session 13: Science Applications
    Invited Oral Presentation

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