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Showing 1–7 of 7 results
Advanced filters: Author: Sang-Kil Son Clear advanced filters

  • 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

  • Visualizing the structural dynamics of isolated molecules would help to understand chemical reactions, but this is difficult for complex structures. Intense femtosecond X-ray pulses allow the full imaging of exploding photoionized molecules, in this case, with eleven atoms.

    • Rebecca Boll
    • Julia M. Schäfer
    • Till Jahnke
    ResearchOpen Access
    Nature Physics
    Volume: 18, P: 423-428

  • Interaction of strong laser fields with matter provides powerful tools to image transient dynamics with high spatiotemporal resolution. The authors investigate strong-field ionisation of laser-aligned molecules showing the effect of molecular alignment on the photoelectron dynamics and the resulting influence of the molecular frame in imaging experiments.

    • Andrea Trabattoni
    • Joss Wiese
    • Jochen Küpper
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-7

  • Availability of intense hard X-ray pulses allows exploration of multiple ionization effects in heavier elements. Here, the authors measure the complex charge state distributions of xenon and found a reasonable agreement by comparing with the model including the relativistic and resonance effects.

    • Benedikt Rudek
    • Koudai Toyota
    • Daniel Rolles
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-6

  • Researchers create high ionization states, up to Xe36+, using 1.5 keV free-electron laser pulses. The higher than expected ionization may be due to transient resonance-enhanced absorption and the effect may play an important role in interactions of intense X-rays with high-Z elements and radiation damage.

    • Benedikt Rudek
    • Sang-Kil Son
    • Daniel Rolles
    Research
    Nature Photonics
    Volume: 6, P: 858-865

  • Single photoionisation can align an atomic electron cloud, yet it is unexplored how the alignment evolves during sequential multi-photon multiple ionisation induced by intense X-ray pulses. In their paper, the authors predict the existence of non-trivial electron-cloud alignment dynamics in quantum-state-resolved X-ray multi-photon ionisation.

    • Laura Budewig
    • Sang-Kil Son
    • Robin Santra
    ResearchOpen Access
    Communications Physics
    Volume: 7, P: 1-9