Optical modulation device and apparatus including the same

    公开(公告)号:US11009769B2

    公开(公告)日:2021-05-18

    申请号:US16192967

    申请日:2018-11-16

    Abstract: Provided are an optical modulation device and an apparatus including the same. The optical modulation device may include a plurality of reflectors located on a driving circuit substrate, a plurality of nano-antennas located on the plurality of reflectors, and an active layer located between the plurality of reflectors and the plurality of nano-antennas and patterned to have a plurality of openings. The optical modulation device may further include a plurality of first connection members configured to electrically connect the driving circuit substrate to the plurality of reflectors and a plurality of second connection members configured to electrically connect the driving circuit substrate to the plurality of nano-antennas. The plurality of second connection members may be connected to the plurality of nano-antennas through the plurality of openings.

    Beam steering device and system including the same

    公开(公告)号:US10901149B2

    公开(公告)日:2021-01-26

    申请号:US15977785

    申请日:2018-05-11

    Abstract: A beam steering device and a system using the same are provided. The beam steering device includes a plurality of transmission type optical modulation devices provided to steer an incident beam in different directions, wherein each of the plurality of transmission type optical modulation devices includes: a phase modulator including a nanoantenna in which a plurality of nanostructure rows are arranged. Each of the nanostructure rows includes a plurality of nanostructures connected to each other. A meta surface includes the plurality of nanostructure rows. Each of the transmission type optical modulation devices also includes a plurality of drivers provided which independently apply an electric signal to each of the nanostructure rows to control a phase change thereof.

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