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Showing 1–14 of 14 results
Advanced filters: Author: Andrew L. Starbuck Clear advanced filters

  • Researchers demonstrated integrated non-magnetic isolators with 24.5-dB contrast, –2.16-dB insertion loss and 2-THz (16-nm) optical bandwidth.

    • Haotian Cheng
    • Yishu Zhou
    • Peter T. Rakich
    Research
    Nature Photonics
    Volume: 19, P: 533-539

  • Fire affects the hydrological interactions between soil and vegetation, leading to faster soil moisture loss and accelerated vegetation water uptake, according to a global analysis of satellite observations on soil moisture, vegetation water content and burned area.

    • Martin J. Baur
    • Andrew D. Friend
    • Adam F. A. Pellegrini
    ResearchOpen Access
    Nature Geoscience
    Volume: 17, P: 1115-1120

  • The authors showcase an optical-to-microwave conversion method using an optomechanical waveguide integrated with a piezoelectric transducer. The presented system allows bidirectional optical-to-microwave conversion with a quantum efficiency of up to—54.16 dB.

    • Yishu Zhou
    • Freek Ruesink
    • Peter Rakich
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-8

  • It remains challenging to realize narrowband filters needed for high-performance communications systems using integrated photonics. Using a multi-port Brillouin-based optomechanical system, the authors demonstrate an ultra-narrowband notch filter with high rejection with CMOS compatible techniques.

    • Shai Gertler
    • Nils T. Otterstrom
    • Peter T. Rakich
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-8

  • Protection afforded by inorganic minerals is assumed to make mineral-associated organic carbon less susceptible to loss under climate change than particulate organic carbon. However, a global study of soil organic carbon from drylands suggests that this is not the case.

    • Paloma Díaz-Martínez
    • Fernando T. Maestre
    • César Plaza
    Research
    Nature Climate Change
    Volume: 14, P: 976-982

  • Random mutagenesis can uncover novel genes involved in phenotypic traits. Here the authors perform a large-scale phenotypic screen on over 100 mouse strains generated by ENU mutagenesis to identify mice with age-related diseases, which they attribute to specific mutations revealed by whole-genome sequencing.

    • Paul K. Potter
    • Michael R. Bowl
    • Steve D. M. Brown
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-13

  • Analysis of 20 chemical and morphological plant traits at diverse sites across 6 continents shows that the transition from semi-arid to arid zones is associated with an unexpected 88% increase in trait diversity.

    • Nicolas Gross
    • Fernando T. Maestre
    • Yoann Le Bagousse-Pinguet
    Research
    Nature
    Volume: 632, P: 808-814

  • Integrated photonics hold potential for signal processing but some operations are difficult to perform in all-optical devices. Here, Shin et al. use the coupling between coherent photons and phonons in nanophotonic waveguides to demonstrate frequency-selective, narrow-linewidth radiofrequency photonic filters.

    • Heedeuk Shin
    • Jonathan A. Cox
    • Peter T. Rakich
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-8

  • Exploiting photon–phonon coupling in nanoscale silicon waveguides could enable a host of powerful features in photonic devices. Using a hybrid photonic–phononic waveguide structure, Shin et al. show stimulated Brillouin scattering nonlinearities and gain, which offers new on-chip signal-processing abilities.

    • Heedeuk Shin
    • Wenjun Qiu
    • Peter T. Rakich
    ResearchOpen Access
    Nature Communications
    Volume: 4, P: 1-10

  • It has been suggested that the Cambrian ocean was oxygen deficient, but physical evidence for widespread anoxia has been lacking. Now, sulphur isotope data from Cambrian rocks at six different locations around the world is presented, with the finding of a positive sulphur isotope excursion in phase with a large excursion in the marine carbon isotope record, which is thought to be indicative of a global carbon cycle perturbation at the time. With the help of a box model, these isotope shifts support the idea of large-scale anoxic and sulphidic conditions in the later Cambrian ocean.

    • Benjamin C. Gill
    • Timothy W. Lyons
    • Matthew R. Saltzman
    Research
    Nature
    Volume: 469, P: 80-83