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    photonic integrated circuits (PICs) tagged posts

    Leaky-Wave Metasurfaces: A Perfect Interface between Free-Space and Integrated Optical Systems

    May 15, 2023, Categories  Physics, Technology/Electronics

    Six holographic images produced by leaky-wave metasurfaces
    Left two figures: Two holographic images produced by a leaky-wave metasurface at two different distances from the device surface. Right four figures: Four distinct holographic images produced by a single leaky-wave metasurface at two different distances from the device surface and at two orthogonal polarization states. Credit: Heqing Huang, Adam Overvig, and Nanfang Yu/Columbia Engineering

    Researchers at Columbia Engineering have developed a new class of integrated photonic devices – “leaky-wave metasurfaces” – that can convert light initially confined in an optical waveguide to an arbitrary optical pattern in free space...

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