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Showing 1–4 of 4 results
Advanced filters: Author: Svitozar Serkez Clear advanced filters
  • Warm dense copper, created by an X-ray free-electron laser, features a transition from reverse saturable absorption to saturable absorption. The results can be used to benchmark non-equilibrium models of electronic structure in warm dense matter.

    • Laurent Mercadier
    • Andrei Benediktovitch
    • Nina Rohringer
    ResearchOpen Access
    Nature Physics
    Volume: 20, P: 1564-1569
  • Intense light pulses can create nonlinear ionization processes in atoms and molecules. Here the authors study the photoionization of xenon atoms using intense free-electron laser pulses that can create extremely high charge states and produce hollow atoms, featuring up to six simultaneous core-holes.

    • Aljoscha Rörig
    • Sang-Kil Son
    • Rebecca Boll
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-10
  • A cascaded hard X-ray self-seeding system is demonstrated at the European X-ray free-electron laser. The setup enables millijoule-level pulses in the photon energy range of 6–14 keV at the rate of ten trains per second, with each train including hundreds of pulses arriving at a megahertz repetition rate.

    • Shan Liu
    • Christian Grech
    • Gianluca Geloni
    ResearchOpen Access
    Nature Photonics
    Volume: 17, P: 984-991
  • X-ray free-electron lasers (XFELs) are powerful tools to explore x-ray interactions in atomic and molecular systems at femtosecond timescales. The authors demonstrate a transparent beamsplitter that uses photoelectron spectroscopy combined with a ghost-imaging algorithm to characterize the spiky spectral structure of individual XFEL pulses.

    • Kai Li
    • Joakim Laksman
    • Linda Young
    ResearchOpen Access
    Communications Physics
    Volume: 5, P: 1-8