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Showing 1–20 of 20 results
Advanced filters: Author: Jason W. Fleischer Clear advanced filters

  • Researchers demonstrate that wrinkles and folds on polymer surfaces can improve the light-harvesting capabilities of solar cells, increasing external quantum efficiencies by up to 600% in the near-infrared. This fabrication method, which employs elastic instabilities of thin, layered materials, may be economical for patterning photonic structures over large areas.

    • Jong Bok Kim
    • Pilnam Kim
    • Yueh-Lin Loo
    Research
    Nature Photonics
    Volume: 6, P: 327-332

  • Researchers use spatial light modulators to create beams with locally varying spatial coherence, and show that the space and spatial frequency information of the beams can be measured simultaneously.

    • Laura Waller
    • Guohai Situ
    • Jason W. Fleischer
    Research
    Nature Photonics
    Volume: 6, P: 474-479

  • By exploiting stochastic resonance — in which nonlinear coupling allows signals to grow at the expense of noise — scientists show that they can recover noise-hidden images propagating in a self-focusing medium. The findings pave the way for a variety of nonlinear instability-driven imaging techniques.

    • Dmitry V. Dylov
    • Jason W. Fleischer
    Research
    Nature Photonics
    Volume: 4, P: 323-328

  • A dataset of the genomes of 363 species from the Bird 10,000 Genomes Project shows increased power to detect shared and lineage-specific variation, demonstrating the importance of phylogenetically diverse taxon sampling in whole-genome sequencing.

    • Shaohong Feng
    • Josefin Stiller
    • Guojie Zhang
    Research
    Nature
    Volume: 587, P: 252-257

  • Bose–Einstein condensation is usually considered to be an inherently quantum mechanical phenomenon. An observation of the condensation in a classical system of light waves in a nonlinear crystal demonstrates that it is a general wave-mechanical phenomenon.

    • Can Sun
    • Shu Jia
    • Jason W. Fleischer
    Research
    Nature Physics
    Volume: 8, P: 470-474

  • Nonlinear optics can overcome the diffraction limit through the presence and interaction of many photons. Abbe's diffraction theory is now generalized to include spatial nonlinearity, and wave mixing is treated as a self-induced structured illumination, thereby allowing a standard imaging system to be nonlinearly enhanced beyond its conventional limits.

    • Christopher Barsi
    • Jason W. Fleischer
    Research
    Nature Photonics
    Volume: 7, P: 639-643

  • A photonic equivalent of a quasicrystal is created in which wave and defect dynamics can be made visible — for example, it is shown that a dislocation introduced in the photonic quasicrystal is healed by re-arrangements of the lattice.

    • Barak Freedman
    • Guy Bartal
    • Jason W. Fleischer
    Research
    Nature
    Volume: 440, P: 1166-1169

  • Imaging through a nonlinear medium can be difficult because signals distort as they propagate through it owing to intensity-dependent phase changes. Here, digital reconstruction of optical spatial beams propagating in a nonlinear medium is presented, which could help the understanding of coupled-wave dynamics and suggest new image-processing techniques.

    • Christopher Barsi
    • Wenjie Wan
    • Jason W. Fleischer
    Research
    Nature Photonics
    Volume: 3, P: 211-215

  • Pixelation is common in quantum imaging systems and limit the image spatial resolution. Here, the authors introduce a pixel super-resolution approach based on measuring the full spatially-resolved joint probability distribution of spatially-entangled photons, and improve pixel resolution by a factor two.

    • Hugo Defienne
    • Patrick Cameron
    • Daniele Faccio
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-9

  • Copper-based catalysts are promising for electroreduction of carbon monoxide to multi-carbon products, yet further improvements in selectivity, productivity and stability are still needed. Here the authors show that doping copper with silver and ruthenium boosts its performance towards synthesis of n-propanol—a useful fuel.

    • Xue Wang
    • Pengfei Ou
    • Edward H. Sargent
    Research
    Nature Energy
    Volume: 7, P: 170-176

  • While progress has been made to formulate models for brain temperature regulation that incorporate non-simplified anatomy and vasculature, accounting for heterogeneity between individuals is still a challenge. Here, the authors propose a fully conserved biophysical model that, starting from an individual subject’s magnetic resonance-derived tissue and vessel structure, predicts individual patterns in local brain temperature in agreement with magnetic resonance thermometry.

    • Dongsuk Sung
    • Peter A. Kottke
    • Candace C. Fleischer
    ResearchOpen Access
    Communications Physics
    Volume: 4, P: 1-10