Patents by Inventor Amir Arbabi

Amir Arbabi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10514296
    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.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: December 24, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Seunghoon Han, Amir Arbabi, Andrei Faraon, Ehsan Arbabi
  • Patent number: 10488651
    Abstract: Metasurfaces comprise an array of meta-atoms in a stretchable polymer. The dimensions and shapes of the meta-atoms and the spacing are varied to obtain desired optical properties. Any optical wavefront, for different wavelengths, illumination angles, and polarization states can be designed with proper design of the meta-atoms. As the metasurface is stretched, the distance between the meta-atoms changes, modifying the optical response, while the dimensions of the meta-atoms remains constant.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: November 26, 2019
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Seyedeh Mahsa Kamali, Ehsan Arbabi, Amir Arbabi, Yu Horie, Andrei Faraon
  • Publication number: 20190355772
    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.
    Type: Application
    Filed: July 31, 2019
    Publication date: November 21, 2019
    Applicants: SAMSUNG ELECTRONICS CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Amir ARBABI, Seunghoon Han, Andrei Faraon
  • Patent number: 10431624
    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.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: October 1, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Seunghoon Han, Yongsung Kim, Seyedeh Mahsa Kamali, Amir Arbabi, Yu Horie, Andrei Faraon, Sungwoo Hwang
  • Patent number: 10403668
    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.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: September 3, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Amir Arbabi, Seunghoon Han, Andrei Faraon
  • Publication number: 20190191144
    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.
    Type: Application
    Filed: February 25, 2019
    Publication date: June 20, 2019
    Applicants: SAMSUNG ELECTRONICS CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Amir ARBABI, Seunghoon HAN, Andrei FARAON
  • Publication number: 20190178714
    Abstract: Compact optical devices such as spectrometers are realized with metasurfaces within a dielectric medium confined by reflective surfaces. The metasurfaces control the phase profiles of the reflected electromagnetic waves within the device. In a compact spectrometer, the metasurfaces within the device separate the electromagnetic waves in different wavelengths. The metasurfaces are designed according to their phase profile by varying the size of the array of scatterers.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 13, 2019
    Inventors: MohammadSadegh FARAJI-DANA, Ehsan ARBABI, Amir ARBABI, Andrei FARAON
  • Patent number: 10267957
    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.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: April 23, 2019
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Seyedeh Mahsa Kamali, Ehsan Arbabi, Amir Arbabi, Andrei Faraon
  • Patent number: 10267956
    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.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: April 23, 2019
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Ehsan Arbabi, Amir Arbabi, Andrei Faraon
  • Publication number: 20190113885
    Abstract: A birefringent metasurface lens formed by an array of nanoposts generates different phase profiles for different incident electromagnetic waves of different polarization. A first polarization is focused at a first focal length, while a second polarization is focused at a second focal length. A variable phase retarder and a polarizer generate interference patterns for each phase difference between the two incident polarizations. The interference patterns are used to generate a hologram, allowing reconstruction of the image of an object.
    Type: Application
    Filed: October 15, 2018
    Publication date: April 18, 2019
    Inventors: Amir ARBABI, Leon C. DING, Ehsan ARBABI, Andrei FARAON
  • Publication number: 20180348511
    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.
    Type: Application
    Filed: May 23, 2018
    Publication date: December 6, 2018
    Applicants: SAMSUNG ELECTRONICS CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Amir ARBABI, Seunghoon HAN, Andrei FARAON
  • Publication number: 20180299595
    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.
    Type: Application
    Filed: May 3, 2018
    Publication date: October 18, 2018
    Inventors: Amir ARBABI, Andrei FARAON
  • Publication number: 20180292644
    Abstract: Metasurfaces comprise an array of meta-atoms in a stretchable polymer. The dimensions and shapes of the meta-atoms and the spacing are varied to obtain desired optical properties. Any optical wavefront, for different wavelengths, illumination angles, and polarization states can be designed with proper design of the meta-atoms. As the metasurface is stretched, the distance between the meta-atoms changes, modifying the optical response, while the dimensions of the meta-atoms remains constant.
    Type: Application
    Filed: April 9, 2018
    Publication date: October 11, 2018
    Inventors: Seyedeh Mahsa KAMALI, Ehsan ARBABI, Amir ARBABI, Yu HORIE, Andrei FARAON
  • Publication number: 20180275321
    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.
    Type: Application
    Filed: May 9, 2018
    Publication date: September 27, 2018
    Inventors: Seyedeh Mahsa KAMALI, Ehsan ARBABI, Amir ARBABI, Andrei FARAON
  • Publication number: 20180267270
    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.
    Type: Application
    Filed: March 16, 2018
    Publication date: September 20, 2018
    Applicants: SAMSUNG ELECTRONICS CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Seunghoon Han, Amir Arbabi, Andrei Faraon, Sungwoo Hwang, Jangwoo You, Byounglyong Choi
  • Patent number: 9995930
    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.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: June 12, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Amir Arbabi, Seunghoon Han, Andrei Faraon
  • Patent number: 9995859
    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 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.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: June 12, 2018
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Seyedeh Mahsa Kamali, Ehsan Arbabi, Amir Arbabi, Andrei Faraon
  • Patent number: 9989680
    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.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: June 5, 2018
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Amir Arbabi, Andrei Faraon
  • Patent number: 9946051
    Abstract: An imaging apparatus and an image sensor including the same are provided. The imaging apparatus includes first, second, and third optical devices. At least one of the first, second, and third optical devices is a thin-lens including nanostructures.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: April 17, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Seunghoon Han, Amir Arbabi, Andrei Faraon, Sungwoo Hwang, Jangwoo You, Byounglyong Choi
  • Patent number: 9939587
    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.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: April 10, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Seunghoon Han, Yu Horie, Andrei Faraon, Amir Arbabi