Patents by Inventor Mark L. Brongersma
Mark L. Brongersma 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).
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Publication number: 20230359072Abstract: We provide plasmonic structures having optical responses that are sensitive to mechanical input(s). Such plasmon resonances can be made sufficiently sensitive to deformation to enable this approach. These structures can be used in active devices, such as an optical metasurface controlled by one or more acoustic inputs, or in passive devices such as an acoustic sensor or mechanical force sensor.Type: ApplicationFiled: May 5, 2023Publication date: November 9, 2023Inventors: Skyler Selvin, Mark L. Brongersma, Majid Esfandyarpour, Jung-Hwan Song
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Patent number: 11747528Abstract: Provided are a diffraction grating device, a method of manufacturing the diffraction grating device, and an optical apparatus including the diffraction grating device. The diffraction grating device includes a diffraction grating arranged on a light reflection substrate. The diffraction grating includes a plurality of diffraction elements, each diffraction element from among the plurality of diffraction elements having a height that causes a destructive interference between first light rays reflected by a top surface therefore and second light rays reflected by a bottom surface thereof, the first and second light rays being incident on the top and bottom surfaces, respectively, at an incidence angle greater than 45°.Type: GrantFiled: August 30, 2019Date of Patent: September 5, 2023Assignees: SAMSUNG ELECTRONICS CO., LTD., The Board of Trustees of the Leland Stanford Junior UniversityInventors: Brandon Born, Mark L. Brongersma, Sunghoon Lee
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Patent number: 11726250Abstract: A beam steering method and device are provided. The beam steering method includes outputting, from a hologram recording medium on which a plurality of signal light beams having different steering information are recorded, signal light beam having specific steering information, by making reference light having a specific characteristic incident on the hologram recording medium. The method further includes obtaining information about an object existing in the external environment based on the output signal light.Type: GrantFiled: November 23, 2020Date of Patent: August 15, 2023Assignees: SAMSUNG ELECTRONICS CO., LTD., The Board of Trustees of the Leland Stanford Junior UniversityInventors: Wonjae Joo, Mark L. Brongersma, Junghyun Park
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Patent number: 11698460Abstract: A laser beam steering system is disclosed. The system includes a laser source which produces a pulsed laser light beam with a frequency comb spectrum, a metasurface configured to i) receive the pulsed laser, ii) generate a diffracted pulsed laser output at different frequencies with a beam at a center frequency normal to the metasurface, and iii) directing light at different frequencies onto different foci at a focal plane, light propagating from the focal plane leads to generation of one or more optical beams that are controlled in space and time.Type: GrantFiled: April 17, 2018Date of Patent: July 11, 2023Assignees: Purdue Research Foundation, BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITYInventors: Amr Mohammad E. A. Shaltout, Vladimir M. Shalaev, Mark L. Brongersma
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Publication number: 20230103982Abstract: Provided is a meta-optics including a waveguide layer including a first surface and a second surface opposite to the first surface; and a plurality of meta units provided on the waveguide layer, each meta unit of the plurality of meta units including a grating configured to diffract incident light of a predetermined wavelength, a first electrode provided under the grating, a dielectric layer provided over the grating, and a second electrode provided on the dielectric layer, wherein a dielectric constant of the grating and a reflectance of the grating with respect to incident light change based on a voltage applied to the first electrode and the second electrode.Type: ApplicationFiled: October 4, 2022Publication date: April 6, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jung-Hwan SONG, Mark L. BRONGERSMA, Junghyun PARK
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Publication number: 20220390656Abstract: Real-space optical signal processing is provided by optical angular filters that act on amplitude and/or phase of zero order light passing through a resonant diffractive optical device. One application is to phase contrast microscopy, where the diffractive optical device can be configured to have an amplitude and phase response suitable for phase contrast microscopy. For example, 60% or more intensity attenuation of the zero order light, combined with a phase shift of the zero order light by +/?90 degrees.Type: ApplicationFiled: November 20, 2020Publication date: December 8, 2022Inventors: Anqi Ji, Mark L. Brongersma, Jung-Hwan Song
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Patent number: 11467495Abstract: To address the needs in the art, a method of fabricating a meta-surface antireflective coating that includes forming on a substrate or in a film on the substrate, using a patterning method, a pattern of nanostructures, where the nanostructures include a pattern of nanowires or a pattern of nanoparticles, or the pattern nanowires and the pattern of nanoparticles, where the nanostructures are arranged to form a metasurface AR coating, where the metasurface AR coating reflects incident light in a double-dip reflectance according to a doubly-resonant arrangement of the metasurface AR coating, where the metasurface AR coating comprises a structure for a direct light pathway and a resonant light pathway.Type: GrantFiled: March 28, 2018Date of Patent: October 11, 2022Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Concetto Eugenio Andrea Cordaro, Emanuele Francesco Pecora, Mark L. Brongersma, Jorik van de Groep
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Patent number: 11448918Abstract: Provided are a grating device, a screen including the grating device, a method of manufacturing the screen, and a display apparatus including the screen. The grating device includes a transparent substrate and a diffraction grating arranged on the transparent substrate, the diffraction grating includes a plurality of meta-diffraction patterns, and each meta-diffraction pattern has a curved shape with a center of curvature provided in a direction parallel to the substrate. The screen includes a first polarizer, a second polarizer arranged next to the first polarizer, and a diffraction grating that is transparent to polarized light that has passed through the second polarizer and reflects polarized light having a polarization direction perpendicular to the polarized light, wherein the diffraction grating includes a plurality of meta-diffraction patterns, each meta-diffraction pattern having a curved shape with a center of curvature positioned in a travelling direction of incident light.Type: GrantFiled: January 30, 2020Date of Patent: September 20, 2022Assignees: SAMSUNG ELECTRONICS CO., LTD., The Board of Trustees of the Leland Stanford Junior UniversityInventors: Sunghoon Lee, Mark L. Brongersma, Brandon Born
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Publication number: 20220050354Abstract: Provided is an optical modulator including a substrate, and a plurality of meta units provided on the substrate and spaced apart from each other, wherein at least one of the plurality of meta units includes a metal layer provided on the substrate, a dielectric layer provided an upper surface and side surfaces of the metal layer, and an antenna provided on an upper surface of the dielectric layer, the antenna including phase change material, wherein a refractive index of the phase change material changes based on a voltage applied to the metal layer to modulate incident light.Type: ApplicationFiled: August 4, 2021Publication date: February 17, 2022Applicants: SAMSUNG ELECTRONICS CO., LTD., The Board of Trustees of the Leland Stanford Junior UniversityInventors: Junghyun PARK, Mark L. BRONGERSMA, Yifei WANG
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Publication number: 20220013905Abstract: Provided is a phase modulator including an antenna pattern, a lower reflective layer spaced apart from the antenna pattern in a vertical direction, a spacer provided between the antenna pattern and the lower reflective layer, and a phase shift pattern included in the spacer, the phase shift pattern including a phase shift material.Type: ApplicationFiled: July 9, 2021Publication date: January 13, 2022Applicants: SAMSUNG ELECTRONICS CO., LTD., The Board of Trustees of the Leland Stanford Junior UniversityInventors: Junghyun PARK, Yifei Wang, Mark L. Brongersma
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Patent number: 11067836Abstract: A multi-stack graphene structure includes a graphene stack that includes graphene layers including amorphous graphene and thin film dielectric layers. The graphene layers include amorphous graphene. The graphene layers and the thin dielectric layers are alternately stacked on one another. The multi-stack graphene structure also includes an electric field former configured to apply an electric field to the graphene layers.Type: GrantFiled: August 30, 2019Date of Patent: July 20, 2021Assignees: SAMSUNG ELECTRONICS CO., LTD., THE BOARD OF TRUSTEES OF THE LELAND STANFORD JR. UNIVERSITYInventors: Wonjae Joo, Juhyung Kang, Soojin Kim, Mark L. Brongersma, Shanhui Fan
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Publication number: 20210103085Abstract: A beam steering method and device are provided. The beam steering method includes outputting, from a hologram recording medium on which a plurality of signal light beams having different steering information are recorded, signal light beam having specific steering information, by making reference light having a specific characteristic incident on the hologram recording medium. The method further includes o obtaining information about an object existing in the external environment based on the output signal light.Type: ApplicationFiled: November 23, 2020Publication date: April 8, 2021Applicants: Samsung Electronics Co., Ltd., The Board of Trustees of the Leland Stanford Junior UniversityInventors: Wonjae Joo, Mark L. Brongersma, Junghyun Park
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Patent number: 10890772Abstract: Waveguide enhanced resonant diffraction is provided in grating structures having negligible non-resonant diffraction by the grating. This is done by making the grating thickness much less than any relevant wavelength, and by having the grating in proximity to a waveguide for diffractive coupling to and from a mode of the waveguide. Material absorption in the grating material can be used to suppress undesired diffraction orders. The resulting structures can provide rainbow-free diffractive optical sampling.Type: GrantFiled: August 9, 2019Date of Patent: January 12, 2021Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Jung-Hwan Song, Mark L. Brongersma
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Patent number: 10877200Abstract: A beam steering method and device are provided. The beam steering method includes outputting, from a hologram recording medium on which a plurality of signal light beams having different steering information are recorded, signal light beam having specific steering information, by making reference light having a specific characteristic incident on the hologram recording medium. The method further includes o obtaining information about an object existing in the external environment based on the output signal light.Type: GrantFiled: August 30, 2018Date of Patent: December 29, 2020Assignees: SAMSUNG ELECTRONICS CO., LTD., The Board of Trustees of the Leland Stanford Junior UniversityInventors: Wonjae Joo, Mark L. Brongersma, Junghyun Park
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Publication number: 20200379349Abstract: To address the needs in the art, a method of fabricating a meta-surface antireflective coating that includes forming on a substrate or in a film on the substrate, using a patterning method, a pattern of nanostructures, where the nanostructures include a pattern of nanowires or a pattern of nanoparticles, or the pattern nanowires and the pattern of nanoparticles, where the nanostructures are arranged to form a metasurface AR coating, where the metasurface AR coating reflects incident light in a double-dip reflectance according to a doubly-resonant arrangement of the metasurface AR coating, where the metasurface AR coating comprises a structure for a direct light pathway and a resonant light pathway.Type: ApplicationFiled: March 28, 2018Publication date: December 3, 2020Inventors: Concetto Eugenio Andrea Cordaro, Emanuele Francesco Pecora, Mark L. Brongersma, Jorik Van de Groep
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Patent number: 10816828Abstract: A multi-stack graphene structure includes a graphene stack that includes graphene layers including amorphous graphene and thin film dielectric layers. The graphene layers include amorphous graphene. The graphene layers and the thin dielectric layers are alternately stacked on one another. The multi-stack graphene structure also includes an electric field former configured to apply an electric field to the graphene layers.Type: GrantFiled: November 2, 2017Date of Patent: October 27, 2020Assignees: SAMSUNG ELECTRONICS CO., LTD., THE BOARD OF TRUSTEES OF THE LELAND STANFORD JR. UNIVERSITYInventors: Wonjae Joo, Juhyung Kang, Soojin Kim, Mark L. Brongersma, Shanhui Fan
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Patent number: 10795234Abstract: A monolithic optical device for light manipulation and control at visible wavelengths includes a device layer deposited on an sacrificial layer deposited on a reflective substrate. The device layer comprises an elastic support structure and nanoscale optical antenna elements, arranged such that the nanoscale optical antenna elements are capable of moving vertically in response to application of an electrostatic potential between the device layer and the reflective substrate. The sacrificial layer joins the elastic support structure to the reflective substrate. The reflective substrate is reflective at optical wavelengths.Type: GrantFiled: April 18, 2018Date of Patent: October 6, 2020Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Mark L. Brongersma, Aaron L. Holsteen
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Publication number: 20200241353Abstract: Provided are a grating device, a screen including the grating device, a method of manufacturing the screen, and a display apparatus including the screen. The grating device includes a transparent substrate and a diffraction grating arranged on the transparent substrate, the diffraction grating includes a plurality of meta-diffraction patterns, and each meta-diffraction pattern has a curved shape with a center of curvature provided in a direction parallel to the substrate. The screen includes a first polarizer, a second polarizer arranged next to the first polarizer, and a diffraction grating that is transparent to polarized light that has passed through the second polarizer and reflects polarized light having a polarization direction perpendicular to the polarized light, wherein the diffraction grating includes a plurality of meta-diffraction patterns, each meta-diffraction pattern having a curved shape with a center of curvature positioned in a travelling direction of incident light.Type: ApplicationFiled: January 30, 2020Publication date: July 30, 2020Applicants: SAMSUNG ELECTRONICS CO., LTD., THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITYInventors: Sunghoon LEE, Mark L. BRONGERSMA, Brandon BORN
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Patent number: 10649303Abstract: An optical device and an optical system including the optical device are provided. The optical device may include a reflective layer and a plurality of nano-beams spaced apart from the reflective layer. The plurality of nano-beams may be formed as a metasurface. The nano-beams may have a pattern structure having a plurality of metasurface forms, and the distance of the gaps between the plurality of nano-beams and the reflective layer may be adjustable individually or as a whole. The optical device may be a beam steering device or an optical phase modulator.Type: GrantFiled: April 27, 2018Date of Patent: May 12, 2020Assignees: SAMSUNG ELECTRONICS CO., LTD., The Board of Trustees of the Leland Stanford Junior UniversityInventors: Wonjae Joo, Mark L. Brongersma, Juhyung Kang
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Patent number: 10615372Abstract: A light emitting device including a micro cavity having a phase modulation surface and a display apparatus including the light emitting device are provided. The light emitting device includes a reflective layer including a phase modulation surface; a first electrode disposed on the phase modulation surface of the reflective layer; a light emitting structure disposed on the first electrode; and a second electrode disposed on the light emitting structure. The phase modulation surface may include a plurality of nano scale patterns that are regularly or irregularly arranged. The reflective layer and the second electrode may constitute the micro cavity having a resonance wavelength of the light emitting device.Type: GrantFiled: December 21, 2018Date of Patent: April 7, 2020Assignees: SAMSUNG ELECTRONICS CO., LTD., THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITYInventors: Wonjae Joo, Mark L. Brongersma, Majid Esfandyarpour