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Volume 15 Issue 5, May 2021

Volume 15 Issue 5

Diffractive optical computing

Artistic impression of optical computing performed by modulating the incident light with layers of diffractive structures, comprised of programmable liquid crystal array. A photodetector array then converts diffracted photons into electrons to realize a reconfigurable optoelectronic processor.

See Dai et al.

IMAGE: Xing Lin, Tiankuang Zhou, Lu Fang, and Qionghai Dai COVER DESIGN: Bethany Vukomanovic

Obituary

  • Obituary |

    When the nanophotonics research community finally gets back to in-person conferences, the rooms will have empty chairs on the first row. The chairs will be reserved for Professor Mark I. Stockman.

    • Alexandra Boltasseva
    • Vladimir M. Shalaev
    • Nikolay. I. Zheludev

News & Views

  • News & Views |

    Photonics offers high hopes for next-generation neural network processors. Now it has been shown that even entirely using off-the-shelf photonics allows surpassing speed and energy efficiency of cutting-edge GPUs.

    • Daniel Brunner
    • Demetri Psaltis
  • News & Views |

    Optical acoustic sensors have gained interest for use in photoacoustic imaging systems, but can they dethrone conventional piezoelectric sensors altogether?

    • David C. Garrett
    • Lihong V. Wang

Perspectives

  • Perspective |

    Progress in the field of quantum-photonics applications of metasurfaces is reviewed. Cutting-edge research, including the development of optical chips supporting high-dimensional quantum entanglement and advanced quantum tomography, is summarized.

    • Alexander S. Solntsev
    • Girish S. Agarwal
    • Yuri S. Kivshar

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