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公开(公告)号：US10732437B2
公开(公告)日：2020-08-04
申请号：US15957541
申请日：2018-04-19
Applicant: California Institute of Technology
Inventor： Mooseok Jang , Yu Horie , Atsushi Shibukawa , Andrei Faraon , Changhuei Yang
Abstract: Complex wavefront engineering is realized through a random metasurface phase mask backed by a phase-only spatial light modulator. The metasurface consists of an array of subwavelength nanoscatterers which give the metasurface a pre-arranged disorder. Since the transmission matrix of the disordered metasurface is known, there is no need for extensive characterization measurements which are instead required in standard disordered optical devices.
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公开(公告)号：US10690809B2
公开(公告)日：2020-06-23
申请号：US16125546
申请日：2018-09-07
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Seyedeh Mahsa Kamali , Ehsan Arbabi , Amir Arbabi , Yu Horie , MohammadSadegh Faraji-Dana , Andrei Faraon
Abstract: A metasurface is defined by an array of scattering elements having a U shape, where the geometrical dimensions determining the U shape are determined according to the different phase profiles that the metasurface is meant to generate in response to an incident electromagnetic wave. The metasurface, therefore, generates different phase shifts as a function of the incident electromagnetic wave.
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公开(公告)号：US20200072668A1
公开(公告)日：2020-03-05
申请号：US16677792
申请日：2019-11-08
Inventor： Seunghoon HAN , Amir Arbabi , Andrei Faraon , Ehsan Arbabi
Abstract: A spectrometer includes a substrate; a slit which is provided on the substrate and through which light is incident onto the substrate; a metasurface including nanostructures that is configured to reflect and focus the light incident thereon through the slit, at different angles based on respective wavelengths; and a sensor which is provided on one side of the substrate that is opposite to another side of the substrate at which the metasurface is disposed, and configured to receive the light from the metasurface.
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公开(公告)号：US10571609B2
公开(公告)日：2020-02-25
申请号：US16439010
申请日：2019-06-12
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.
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公开(公告)号：US20200052027A1
公开(公告)日：2020-02-13
申请号：US16597491
申请日：2019-10-09
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.
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Patent Agency Ranking
公开(公告)号：US10514296B2
公开(公告)日：2019-12-24
申请号：US15221184
申请日：2016-07-27
Inventor： Seunghoon Han , Amir Arbabi , Andrei Faraon , Ehsan Arbabi
Abstract: A spectrometer includes a substrate; a slit which is provided on the substrate and through which light is incident onto the substrate; a metasurface including nanostructures that is configured to reflect and focus the light incident thereon through the slit, at different angles based on respective wavelengths; and a sensor which is provided on one side of the substrate that is opposite to another side of the substrate at which the metasurface is disposed, and configured to receive the light from the metasurface.
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公开(公告)号：US10431624B2
公开(公告)日：2019-10-01
申请号：US15193229
申请日：2016-06-27
Inventor： Seunghoon Han , Yongsung Kim , Seyedeh Mahsa Kamali , Amir Arbabi , Yu Horie , Andrei Faraon , Sungwoo Hwang
IPC: H01L27/14 , H01L27/12 , H01L21/76 , H01L27/146 , H01L21/762
Abstract: A method of manufacturing an image sensor includes: preparing a sensor substrate including: a sensor layer including a photosensitive cell; and a signal line layer including lines to receive electric signals from the photosensitive cell; forming a first material layer having a first refractive index on the sensor substrate; and forming a nanopattern layer on the first material layer, the nanopattern layer including a material having a second refractive index different from the first refractive index.
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公开(公告)号：US10267957B2
公开(公告)日：2019-04-23
申请号：US15975521
申请日：2018-05-09
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Seyedeh Mahsa Kamali , Ehsan Arbabi , Amir Arbabi , Andrei Faraon
Abstract: Structures for scattering light at multiple wavelengths are disclosed. Scattering elements are fabricated with different geometric dimensions and arrangements, to scatter or focus light at the same focal distance for each wavelength, or at different focal distances according to the desired application. The scattering elements fabricated on a substrate can be peeled off with a polymer matrix and attached to a lens to modify the optical properties of the lens.
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公开(公告)号：US10267956B2
公开(公告)日：2019-04-23
申请号：US15096615
申请日：2016-04-12
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Ehsan Arbabi , Amir Arbabi , Andrei Faraon
Abstract: Structures for scattering light at multiple wavelengths are disclosed. Scattering elements are fabricated with different geometric dimensions and arrangements, to scatter or focus light at the same focal distance for each wavelength, or at different focal distances according to the desired application. Scattering elements can be circular or elliptical posts, allowing polarization dependent scattering. The elements can have different orientations to scatter light from multiple wavelengths at the desired focal length.
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公开(公告)号：US20180267270A1
公开(公告)日：2018-09-20
申请号：US15923554
申请日：2018-03-16
Inventor： Seunghoon Han , Amir Arbabi , Andrei Faraon , Sungwoo Hwang , Jangwoo You , Byounglyong Choi
IPC: G02B9/14 , G02B3/08 , G02B1/00 , H04N5/225 , G02B13/00 , G02B9/10 , G02B9/12 , G02B13/18 , G02B5/18
CPC classification number: G02B9/14 , G02B1/002 , G02B3/08 , G02B5/1876 , G02B9/10 , G02B9/12 , G02B13/003 , G02B13/0035 , G02B13/0055 , G02B13/18 , G02B2207/101 , H04N5/2254 , H05K999/99
Abstract: An optical system and an image sensor including the same are provided. The optical system includes first, second, and third optical devices. At least one of the first, second, and third optical devices is a thin-lens including nanostructures.
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