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Showing 1–4 of 4 results
Advanced filters: Author: Hitoki Yoneda Clear advanced filters

  • Saturable absorption is a widely used process in optical-wavelength laser technologies that arises when the transmittance of a material increases upon high-intensity light illumination. Here, Yoneda et al.tightly focus free-electron laser light and demonstrate hard X-ray saturable absorption in iron.

    • Hitoki Yoneda
    • Yuichi Inubushi
    • Hikaru Kitamura
    Research
    Nature Communications
    Volume: 5, P: 1-5

  • Strong lasing effects similar to those in the optical regime can occur at 1.5–2.1 Å wavelengths during high-intensity XFEL-driven Kα1 lasing of copper and manganese.

    • Thomas M. Linker
    • Aliaksei Halavanau
    • Uwe Bergmann
    Research
    Nature
    Volume: 642, P: 934-940

  • In high-power lasers, beams are expanded to the order of meters such to avoid damaging optical element, but increasingly large optics are impractical. Here, a diffraction grating based on laser-induced density modulations of a gas is shown to exhibit an enhanced damage threshold for nanosecond pulses.

    • Yurina Michine
    • Hitoki Yoneda
    ResearchOpen Access
    Communications Physics
    Volume: 3, P: 1-7