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Showing 1–7 of 7 results
Advanced filters: Author: V. Zhaunerchyk Clear advanced filters

  • X-ray free-electron lasers, important light sources for materials research, suffer from shot-to-shot fluctuations that necessitate complex diagnostics. Here, the authors apply machine learning to accurately predict pulse properties, using parameters that can be acquired at high-repetition rates.

    • A. Sanchez-Gonzalez
    • P. Micaelli
    • J. P. Marangos
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-9

  • Understanding the dynamics of molecules exposed to intense X-ray beams is crucial to ongoing efforts in biomolecular imaging with free-electron lasers. Here, the authors study C60molecules interacting with femtosecond X-ray free-electron laser pulses and present a model based on classical and quantum physics.

    • B. F. Murphy
    • T. Osipov
    • N. Berrah
    Research
    Nature Communications
    Volume: 5, P: 1-9

  • The first steps in photochemical processes involve changes in electronic and geometric structure on extremely short timescales. Here, the authors report femtosecond dynamics in prototypical acetylacetone, by pump-probe photoexcitation-photoemission experiments and static and dynamics calculations.

    • R. J. Squibb
    • M. Sapunar
    • M. N. Piancastelli
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-7

  • Coincidence experiments at free-electron lasers enable time resolved site-specific investigations of molecular photochemistry at high signal rates, but isolating individual dissociation processes still poses a considerable technical challenge. Here, the authors use electron-ion partial covariance imaging to isolate otherwise elusive chemical shifts in UV-induced photofragmentation pathways of the prototypical chiral molecule 1-iodo-2-methylbutane.

    • Felix Allum
    • Valerija Music
    • Markus Ilchen
    ResearchOpen Access
    Communications Chemistry
    Volume: 5, P: 1-10

  • Ultrashort circularly polarised light pulses from free-electron lasers offer a route for exploring chiral molecules and their dynamics, but remain challenging to harness. Here, X-ray pump-probe experiments enable a site-specific photoelectron circular dichroism measurement on a dissociating chiral molecule.

    • Markus Ilchen
    • Philipp Schmidt
    • Philipp V. Demekhin
    ResearchOpen Access
    Communications Chemistry
    Volume: 4, P: 1-9