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Showing 1–11 of 11 results
Advanced filters: Author: Gordon A. Keeler Clear advanced filters

  • Frequency mixers are hard to achieve at optical frequencies because it is difficult to meet different phase-matching conditions. Here, the authors show that GaAs metasurfaces can mix laser beams to generate eleven new wavelengths through different nonlinear optical processes occurring simultaneously.

    • Sheng Liu
    • Polina P. Vabishchevich
    • Igal Brener
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-6

  • The measurement of the total cross-section of proton–proton collisions is of fundamental importance for particle physics. Here, the first measurement of the inelastic cross-section is presented for proton–proton collisions at an energy of 7 teraelectronvolts using the ATLAS detector at the Large Hadron Collider.

    • G. Aad
    • B. Abbott
    • L. Zwalinski
    ResearchOpen Access
    Nature Communications
    Volume: 2, P: 1-14

  • Metasurfaces are not adjustable after fabrication, and a critical challenge is to realise a technique of tuning their optical properties that is both fast and efficient. Here, Shcherbakov et al. realise an ultrafast tunable metasurface with picosecond-scale large absolute reflectance modulation at low pump fluences.

    • Maxim R. Shcherbakov
    • Sheng Liu
    • Andrey A. Fedyanin
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-6

  • The ATLAS Collaboration reports the observation of the electroweak production of two jets and a Z-boson pair. This process is related to vector-boson scattering and allows the nature of electroweak symmetry breaking to be probed.

    • G. Aad
    • B. Abbott
    • L. Zwalinski
    ResearchOpen Access
    Nature Physics
    Volume: 19, P: 237-253

  • The value of having a diversity of species within an ecosystem is well appreciated: species-rich communities are thought to produce more stable ecosystem services. But population diversity within a species is important too. Here, the effects of diversity in population and life history in a heavily exploited Alaskan salmon species are quantified. The results show that population diversity increases the resilience of this ecosystem, and hence the value of salmon fisheries.

    • Daniel E. Schindler
    • Ray Hilborn
    • Michael S. Webster
    Research
    Nature
    Volume: 465, P: 609-612