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    Image sensor including nanostructure color filter
    41.
    发明授权
    Image sensor including nanostructure color filter 有权

    公开(公告)号：US10359549B2

    公开(公告)日：2019-07-23

    申请号：US15941799

    申请日：2018-03-30

    Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  CALIFORNIA INSTITUTE OF TECHNOLOGY

    Inventor： Seunghoon Han ,  Yu Horie ,  Andrei Faraon ,  Sungwoo Hwang

    IPC: H04N3/14 ,  H04N5/335 ,  G02B5/20 ,  H01L27/146 ,  G03B33/16

    Abstract: An image sensor includes an optical sensor layer including a plurality of light-sensitive cells configured to sense light to generate electrical signals, and a color filter array layer disposed on the optical sensor layer and including a plurality of color filters respectively facing the plurality of light-sensitive cells. Each of the plurality of color filters includes a nanostructure in which a first material having a first refractive index and a second material having a second refractive index higher than the first refractive index are arranged. The first material and the second material are alternatively positioned at an interval less than a central wavelength of a color of the color filter. Thus, a thin image sensor having good wavelength selectivity and suitable for obtaining high resolution images is provided.

    IMPLANTABLE, HIGHLY COLLIMATED LIGHT-EMITTERS FOR BIOLOGICAL APPLICATIONS
    45.
    发明申请
    IMPLANTABLE, HIGHLY COLLIMATED LIGHT-EMITTERS FOR BIOLOGICAL APPLICATIONS 审中-公开

    公开(公告)号：US20170106204A1

    公开(公告)日：2017-04-20

    申请号：US15295991

    申请日：2016-10-17

    Applicant: California Institute of Technology

    Inventor： Eran Segev ,  Laurent Moreaux ,  Trevor M. Fowler ,  Andrei Faraon ,  Michael L. Roukes

    IPC: A61N5/06

    CPC classification number: A61N5/0601 ,  A61N5/0622 ,  A61N2005/0612 ,  A61N2005/063

    Abstract: A neural probe for light stimulation of a tissue is provided. The probe includes a base that has light supplying circuitry, and one or more elongated microsized shanks extending from the base. Each shank has a longitudinal axis and includes one or more waveguides extending along the shank's length, with the waveguides being optically connected to the light supplying circuitry. In addition, each of the waveguides is optically connected to a diffraction grating coupler that emits a light beam from the shank when light passes from the base through the waveguide and to the diffraction grating coupler. The emitted light beam has a propagation direction at a set angle relative to an axis that is substantially normal to the longitudinal axis of the shank. A method for stimulating a tissue using the neural probe is also provided.

    Spectrometer including metasurface
    46.
    发明授权
    Spectrometer including metasurface 有权

    公开(公告)号：US11867556B2

    公开(公告)日：2024-01-09

    申请号：US17486326

    申请日：2021-09-27

    Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  CALIFORNIA INSTITUTE OF TECHNOLOGY

    Inventor： Seunghoon Han ,  Amir Arbabi ,  Andrei Faraon ,  Ehsan Arbabi

    IPC: G01J3/02 ,  G01J3/28 ,  G01J3/447 ,  B82Y20/00

    CPC classification number: G01J3/0208 ,  G01J3/0205 ,  G01J3/0224 ,  G01J3/0256 ,  G01J3/0259 ,  G01J3/2803 ,  G01J3/447 ,  B82Y20/00

    Abstract: A spectrometer includes a transparent substrate including a first surface and a second surface that face each other and are substantially parallel to each other; a slit provided on the first surface and through which light is incident onto the transparent substrate; a spectrum optical system including metasurface including a plurality of nanostructures that are two-dimensionally arranged and satisfy a sub-wavelength scattering condition, wherein the metasurface includes a focusing metasurface which includes first nanostructures of the plurality of nanostructures, and is configured to reflect, disperse, and focus the light incident thereon through the slit, at different angles based on respective wavelengths; and a sensor configured to receive the light from the focusing metasurface. When L is a total length of an optical path from the slit to the sensor and D is a thickness of the transparent substrate, L and D satisfy the following inequality: L/D>3.

    IMAGING APPARATUS AND IMAGE SENSOR INCLUDING THE SAME
    48.
    发明申请
    IMAGING APPARATUS AND IMAGE SENSOR INCLUDING THE SAME 有权

    公开(公告)号：US20210288096A1

    公开(公告)日：2021-09-16

    申请号：US17335705

    申请日：2021-06-01

    Applicant: Samsung Electronics Co., Ltd. ,  California Institute of Technology

    Inventor： Amir Arbabi ,  Seunghoon Han ,  Andrei Faraon

    IPC: H01L27/146

    Abstract: An image sensor includes a substrate, thin lenses disposed on a first surface of the substrate and configured to concentrate lights incident on the first surface, and light-sensing cells disposed on a second surface of the substrate, the second surface facing the first surface, and the light-sensing cells being configured to sense lights passing through the thin lenses, and generate electrical signals based on the sensed lights. A first thin lens and second thin lens of the thin lenses are configured to concentrate a first light and a second light, respectively, of the incident lights onto the light-sensing cells, the first light having a different wavelength than the second light.

    Controllable planar optical focusing system
    49.
    发明授权
    Controllable planar optical focusing system 有权

    公开(公告)号：US10816704B2

    公开(公告)日：2020-10-27

    申请号：US15970658

    申请日：2018-05-03

    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY

    Inventor： Amir Arbabi ,  Andrei Faraon

    IPC: G02B5/18 ,  G02B1/00 ,  G02B7/08 ,  G02B27/42 ,  G02B3/00 ,  G03B3/00 ,  G02F1/00

    Abstract: An optical device has a first metasurface. A high-contrast pattern of the first metasurface is operable for modifying, over a first phase profile, a phase front of an incident light beam. A second metasurface, is disposed over a plane parallel to the first metasurface with a second high-contrast pattern and operable for shaping, over a second phase profile, the modified phase front of the incident light beam into a converging spherical phase front. A spacer layer, in which the modified phase front of the incident light beam diffracts, is disposed in a controllably changeable separation between the first and second metasurfaces. Controllably changing the separation between the first and the second metasurfaces by a first distance correspondingly changes the position of the focus point of the converging spherical phase front by a second distance.

    Imaging apparatus and image sensor including the same
    50.
    发明授权
    Imaging apparatus and image sensor including the same 有权

    公开(公告)号：US10790325B2

    公开(公告)日：2020-09-29

    申请号：US16597491

    申请日：2019-10-09

    Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  CALIFORNIA INSTITUTE OF TECHNOLOGY

    Inventor： Amir Arbabi ,  Seunghoon Han ,  Andrei Faraon ,  Hyeonsoo Park

    IPC: H01L27/146 ,  G03B35/10 ,  H04N5/225

    Abstract: An image sensor includes a substrate, thin lenses disposed on a first surface of the substrate and configured to concentrate lights incident on the first surface, and light-sensing cells disposed on a second surface of the substrate, the second surface facing the first surface, and the light-sensing cells being configured to sense lights passing through the thin lenses, and generate electrical signals based on the sensed lights. A first thin lens and second thin lens of the thin lenses are configured to concentrate a first light and a second light, respectively, of the incident lights onto the light-sensing cells, the first light having a different wavelength than the second light.

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