Broadband meta-optical device
    1.
    发明授权

    公开(公告)号:US11086051B2

    公开(公告)日:2021-08-10

    申请号:US15599943

    申请日:2017-05-19

    Abstract: The present invention provides an optical component comprising a dielectric layer and a nanorod array; the nanorod array is formed on a surface of the dielectric layer and extends along a lateral direction and a vertical direction. The nanorod array comprises a plurality of nanorods extending along the dielectric layer. The nanorods have a gap between one another, and an angle is defined by two adjacent nanorods. A bump is formed at each of two ends of the nanorod.

    Metalens for light field imaging
    2.
    发明授权

    公开(公告)号:US11686885B2

    公开(公告)日:2023-06-27

    申请号:US16721343

    申请日:2019-12-19

    CPC classification number: G02B3/0068 G02B1/002 G02B3/0087 H04N23/55

    Abstract: Compound eyes of insects are great optical system for imaging and sensing by the nature creator, which is an unsurpassed challenge due to its precision and small size. Here, we use meta-lens consisting of GaN nano-antenna to open the fascinating doorway to full-color achromatic light field imaging and sensing. A 60×60 multi-channels meta-lens array is used for effectively capturing multi-dimensional optical information including image and depth. Based on this, the multi-dimensional light field imaging and sensing of a moving object is capable to be experimentally implemented. Our system presents a diffraction-limit resolution of 1.95 micrometer via observing the standard resolution test chart under white light illumination. This is the first mimic optical light field imaging and sensing system of insect compound eye, which has potential applications in micro robotic vision, non-men vehicle sensing, virtual and augmented reality, etc.

    Broadband achromatic metalens in the visible spectrum

    公开(公告)号:US11079520B2

    公开(公告)日:2021-08-03

    申请号:US16231868

    申请日:2018-12-24

    Abstract: In this disclosure, an optical component which comprises an array of metalenses is provided. Each metalens comprises a plurality of nanostructures and a dielectric layer and the nanostructures are disposed on the dielectric layer, and the nanostructures comprises an array of first phase compensation structures, and an array of second phase compensation structures. The array of the first phase compensation structures are disposed to surround the array of the second phase compensation structures so as to define a single metalens. The first and second phase compensation structures are complementary to each other and substantially satisfy the Babinet's principle.

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