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Showing 1–11 of 11 results
Advanced filters: Author: Sam M. Vinko Clear advanced filters

  • The plasma environment induces an ionization potential depression on its ions, yet a clear description of this effect remains elusive. Towards this aim, Vinko et al.offer a method to study the structure and position of the continuum of highly ionized dense plasmas that accurately reproduces recent experiments.

    • S. M. Vinko
    • O. Ciricosta
    • J. S. Wark
    Research
    Nature Communications
    Volume: 5, P: 1-7

  • The electrons in a plasma can further ionize the ions when the two collide. Vinko et al. now study this ultrafast process in an unconventional plasma with a density similar to that of a solid, and show that the rate is several times higher than that predicted by standard theoretical models.

    • S. M. Vinko
    • O. Ciricosta
    • J. S. Wark
    Research
    Nature Communications
    Volume: 6, P: 1-7

  • Experimental study of the interactions between intense X-rays and solid matter illustrate the generation of a solid-density plasma governed by electron–ion collisions; these results should inform future high-intensity X-ray experiments involving dense samples, such as X-ray diffractive imaging of biological samples, material science investigations, and the study of matter in extreme conditions.

    • S. M. Vinko
    • O. Ciricosta
    • J. S. Wark
    Research
    Nature
    Volume: 482, P: 59-62

  • The first experimental demonstration of saturable absorption in core-electron transitions in aluminium paves the way for investigating warm dense matter, which potentially has an important role in planetary science and the realization of inertial confinement fusion.

    • Bob Nagler
    • Ulf Zastrau
    • Justin S. Wark
    Research
    Nature Physics
    Volume: 5, P: 693-696

  • Real-time electron dynamics studies of complex systems require bright attosecond pump-probe capabilities at X-ray wavelengths. Nano-focusing schemes reaching intensities in excess of 1022 W cm–2 and superradiant cascaded amplification of attosecond pulses to TW powers at free-electron lasers are providing transformative capabilities in this burgeoning field.

    • Sam M. Vinko
    News & Views
    Nature Photonics
    Volume: 18, P: 649-650

  • The authors combine differentiable physics modelling and neural networks to extract high-resolution electronic density of states of warm dense materials from resonant inelastic x-ray scattering spectra. With this approach, they identify distinctive features in the valence structures of warm dense Fe and Fe2O3, also estimating their temperature and M-shell binding energies.

    • Alessandro Forte
    • Thomas Gawne
    • Sam M. Vinko
    ResearchOpen Access
    Communications Physics
    Volume: 7, P: 1-9

  • Binding of the PD1-IL2v immunocytokine to PD-1 and IL-2Rβγ on the same cell leads to an alternative differentiation of stem-like CD8+ T cells into better effectors rather than exhausted T cells in models of both chronic infection and cancer.

    • Laura Codarri Deak
    • Valeria Nicolini
    • Pablo Umaña
    ResearchOpen Access
    Nature
    Volume: 610, P: 161-172

  • X-ray free-electron lasers enable a range of new experimental investigations into the properties of matter driven to extreme conditions via intense x-ray-matter interaction. The proposed numerical method enables a quantitative investigation of transient high-energy-density plasmas driven by XFELs in femtosecond timescales even when both electrons and ions are far from local thermodynamic equilibrium.

    • Shenyuan Ren
    • Yuanfeng Shi
    • Sam M. Vinko
    ResearchOpen Access
    Communications Physics
    Volume: 6, P: 1-10