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公开(公告)号：US09482796B2
公开(公告)日：2016-11-01
申请号：US14610862
申请日：2015-01-30
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Amir Arbabi , Andrei Faraon
CPC classification number: G02B5/1828 , G02B1/002 , G02B3/0087 , G02B5/18 , G02B5/1842 , G02B5/1847 , G02B7/08 , G02B27/4277 , G02F1/0018 , G03B3/00 , Y10T29/49844
Abstract: An optical device has a first metasurface disposed over a substrate. 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 significantly greater than the first distance.
Abstract translation: 光学器件具有设置在衬底上的第一分表面。 第一分表的高对比度图案可操作用于在第一相位轮廓上修改入射光束的相位前沿。 第二分表面设置在平行于第一分表面的平面上，具有第二高对比度图案，并且可操作用于在第二相位轮廓上使入射光束的修改相位前沿成为会聚球形相位前沿。 其中入射光束的修正相位前沿衍射的间隔层被布置在第一和第二分表面之间的可控地变化的间隔中。 可控地改变第一和第二元件之间的距离第一距离相应地将会聚球形相位前方的焦点的位置改变明显大于第一距离的第二距离。
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公开(公告)号：US11378797B2
公开(公告)日：2022-07-05
申请号：US16582049
申请日：2019-09-25
Inventor： Amir Arbabi , Seunghoon Han , Andrei Faraon , Hyeonsoo Park
Abstract: Provided is a focusing device that includes a substrate and a plurality of scatterers provided at both sides of the substrate. The scatterers on the both sides of the focusing device may correct geometric aberration, and thus, a field of view (FOV) of the focusing device may be widened.
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公开(公告)号：US11089286B2
公开(公告)日：2021-08-10
申请号：US16284087
申请日：2019-02-25
Inventor： Amir Arbabi , Seunghoon Han , Andrei Faraon
IPC: H04N3/22 , H04N13/229 , G02B5/20 , G02B3/00 , H01L27/146 , G03B35/10 , H04N5/225
Abstract: An image sensor includes a substrate, a first thin lens configured to concentrate light of a first wavelength, and including a plurality of first scatterers disposed on the substrate. The plurality of first scatterers includes a material having a refractive index greater than a refractive index of the substrate. The image sensor further includes a plurality of light-sensing cells configured to sense the light concentrated by the first thin lens.
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公开(公告)号：US11037976B2
公开(公告)日：2021-06-15
申请号：US16527341
申请日：2019-07-31
Inventor： Amir Arbabi , Seunghoon Han , Andrei Faraon
IPC: H01L27/146 , H04N5/225 , G03B35/10
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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公开(公告)号：US10942333B2
公开(公告)日：2021-03-09
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 , G02B13/00 , G02B9/12 , G02B13/18 , G02B27/00 , G02B1/00 , G02B3/08 , G02B5/18 , G02B9/10
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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Patent Agency Ranking
公开(公告)号：US10881336B2
公开(公告)日：2021-01-05
申请号：US15241914
申请日：2016-08-19
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Andrei Faraon , Amir Arbabi , Yu Horie
Abstract: A solution containing a target molecule and a reference molecule is illuminated to obtain Raman signals. An optical metasurface is used as a diffractive optical element to split the Raman signal from the target molecule and the Raman signal from the reference molecule. The target and reference Raman signals can be detected at different locations with different photodetectors, and the target molecule concentration in the solution is determined by comparing the target and reference Raman signals.
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公开(公告)号：US20200256725A1
公开(公告)日：2020-08-13
申请号：US16692776
申请日：2019-11-22
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：US09989680B2
公开(公告)日：2018-06-05
申请号：US15335024
申请日：2016-10-26
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Amir Arbabi , Andrei Faraon
CPC classification number: G02B5/1828 , G02B1/002 , G02B3/0087 , G02B5/18 , G02B5/1842 , G02B5/1847 , G02B7/08 , G02B27/4277 , G02F1/0018 , G03B3/00 , Y10T29/49844
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.
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公开(公告)号：US09939587B2
公开(公告)日：2018-04-10
申请号：US15249608
申请日：2016-08-29
Inventor： Seunghoon Han , Yu Horie , Andrei Faraon , Amir Arbabi
CPC classification number: G02B6/29356 , G01J3/18 , G01J3/1895 , G01J3/26 , G01J2003/2826 , G02B5/1809 , G02B5/201 , G02B5/281 , G02B5/288 , G02B6/29325
Abstract: An on-chip optical filter having Fabri-Perot resonators and a spectrometer may include a first sub-wavelength grating (SWG) reflecting layer and a second SWG reflecting layer facing each other. A plurality of Fabri-Perot resonators are formed by the first SWG reflecting layer and the second SWG reflecting layer facing each other. Each of the Fabri-Perot resonators may transmit light corresponding to a resonance wavelength of the Fabri-Perot resonator. The resonance wavelengths of the Fabri-Perot resonators may be determined according to duty cycles of grating patterns.
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公开(公告)号：US11994671B2
公开(公告)日：2024-05-28
申请号：US17874004
申请日：2022-07-26
Inventor： Amir Arbabi , Seunghoon Han , Andrei Faraon
CPC classification number: G02B27/0031 , G02B5/0263 , G02B5/0294 , G02B5/1876 , G02B5/3083 , G02B23/00 , G02B27/005 , G02B27/0927 , G02B27/0955 , G02B27/4216 , G02B27/4272 , G02B3/0087
Abstract: A focusing device includes a substrate and a plurality of scatterers provided at both sides of the substrate. The scatterers on the both sides of the focusing device may correct geometric aberration, and thus, a field of view (FOV) of the focusing device may be widened.
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