META-OPTICAL DEVICE AND ELECTRONIC APPARATUS INCLUDING THE SAME

    公开(公告)号:US20220221741A1

    公开(公告)日:2022-07-14

    申请号:US17400840

    申请日:2021-08-12

    Abstract: Provided is a meta-optical device exhibiting a target phase delay profile with respect to incident light of a predetermined wavelength band, the meta-optical device including: a first layer including a plurality of first nanostructures and a first surrounding material surrounding the plurality of first nanostructures, and having a first phase delay profile of a first tendency that is substantially equal to a tendency of the target phase delay profile; a second layer including a plurality of second nanostructures and a second surrounding material surrounding the plurality of second nanostructures, and having a second phase delay profile of a second tendency that is substantially opposite to the tendency of the target phase delay profile; and a third layer including a plurality of third nanostructures and a third surrounding material surrounding the plurality of third nanostructures, wherein the third layer is different from the second layer in terms of at least one of a material and an arrangement rule. The meta-optical device is capable of minimizing a primary dispersion and higher-order dispersions and thus may exhibit constant diffraction efficiency with respect to light of a wide wavelength band.

    IMAGE SENSOR AND ELECTRONIC APPARATUS INCLUDING THE SAME

    公开(公告)号:US20240079429A1

    公开(公告)日:2024-03-07

    申请号:US18236652

    申请日:2023-08-22

    CPC classification number: H01L27/14625 H01L27/14605 H01L27/14621

    Abstract: An image sensor includes a sensor substrate including a plurality of unit pixel groups each including a first pixel, a second pixel, a third pixel, and a fourth pixel arranged in a Bayer pattern, and a color separating lens array which separates incident light according to wavelengths and condenses the light on each of the first to fourth pixels, wherein the color separating lens array a plurality of pixel corresponding groups respectively corresponding to the plurality of unit pixel groups, and the plurality of pixel corresponding groups each include first to fourth pixel corresponding regions corresponding to the first to fourth pixels and a plurality of nanoposts. From among the plurality of pixel corresponding groups, relative positional relationships between the nanoposts of the first to fourth pixel corresponding regions in each of the plurality of peripheral groups that are located out of the center of the color separating lens array may be different from each other.

    META-OPTICAL DEVICE AND ELECTRONIC APPARATUS INCLUDING THE SAME

    公开(公告)号:US20210271000A1

    公开(公告)日:2021-09-02

    申请号:US17152927

    申请日:2021-01-20

    Abstract: Provided is a meta-optical device including a first layer including a plurality of first nanostructures and a first material disposed adjacent to the plurality of first nanostructures, a second layer disposed on the first layer, the second layer including a plurality of second nanostructures and a second material disposed adjacent to the plurality of second nanostructures, wherein the first layer and the second layer include regions in which signs of an effective refractive index change rate in a first direction are opposite to each other, and wherein the meta-optical device is configured to obtain a target phase delay profile with respect to incident light of a predetermined wavelength band.

    META LENS AND OPTICAL APPARATUS INCLUDING THE SAME

    公开(公告)号:US20230358923A1

    公开(公告)日:2023-11-09

    申请号:US18224990

    申请日:2023-07-21

    CPC classification number: G02B3/04 G02B1/002 G02B5/126 G02B1/14

    Abstract: A meta lens includes a first lens surface, and a second lens surface provided opposite to the first lens surface, wherein at least one of the first lens surface and the second lens surface is a metasurface including a plurality of nanostructures having a sub-wavelength dimension that is less than a central wavelength λ0 in an operation wavelength band of the meta lens, and wherein a deflection property of the first lens surface and a deflection property of the second lens surface based on positions of incident light are opposite to each other in at least some regions of each of the first lens surface and the second lens surface.

    META-OPTICAL DEVICE AND ELECTRONIC DEVICE INCLUDING THE SAME

    公开(公告)号:US20230236339A1

    公开(公告)日:2023-07-27

    申请号:US18097820

    申请日:2023-01-17

    CPC classification number: G02B1/002 G02B1/11 G02B1/14 G02B27/42 G02B2207/101

    Abstract: Provided is a meta-optical device including a substrate, a first meta-structure layer provided on the substrate, the first meta-structure layer including a first nanostructure having a sub-wavelength shape dimension and a first peripheral material provided adjacent to the first nanostructure, a second meta-structure layer provided on the first meta-structure layer, the second meta-structure layer including a second nanostructure having the sub-wavelength shape dimension and a second peripheral material provided adjacent to the second nanostructure, and a first functional layer provided between the first meta-structure layer and the second meta-structure layer, the first functional layer including a first-first layer having an etch rate that is lower than an etch rate of the second peripheral material, and a first-second layer having a refractive index that is different from a refractive index of the first-first layer.

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