Patents by Inventor Meir Orenstein

Meir Orenstein 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: 11923873
    Abstract: In certain examples, methods and semiconductor structures are directed to an apparatus including a photon emitter such as an LED which operates over an emission wavelength range and a photo-voltaic device arranged relative to the photon emitter to provide index-matched optical coupling between the photo-voltaic device and the photon emitter for an emission wavelength range of the photon emitter.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: March 5, 2024
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Shanhui Fan, Bo Zhao, Sid Assawaworrarit, Parthiban Santhanam, Meir Orenstein
  • Publication number: 20230263062
    Abstract: In certain examples, methods, apparatuses and semiconductor-related structures are directed to nighttime-like electrical power generation by use of a spectro-angular selective emitter as an optimal radiative cooler and a thermoelectric power generator (TEG) having a hot side and a cold side. The cold side may be coupled to the spectro-angular selective emitter which is directed to or facing an atmosphere characterized by an absence of solar light. Power may be generated via the TEG based on energy directed from the spectro-angular selective emitter and by controlling or limiting ability of the spectro-angular selective emitter to absorb heat power at frequencies and/or angles where emission of the atmosphere is dominant.
    Type: Application
    Filed: July 7, 2021
    Publication date: August 17, 2023
    Inventors: Shanhui Fan, Lingling Fan, Wei Li, Meir Orenstein
  • Patent number: 11519864
    Abstract: A monitoring system and method are presented for use in monitoring a target. The monitoring system comprises: an input utility for receiving input data comprising measured data indicative of optical response of the target measured under predetermined conditions and comprising phase data indicative of a two-dimensional profile of full phase of the optical response of the target in a predetermined two-dimensional parametric space including a two-dimensional range in which said target exhibits phase singularity; an analyzer module for processing said measured data and extracting at least one phase singularity signature of the target characterizing the target status, the phase singularity signature being formed by a number N of phase singularity points, each corresponding to a condition that the physical phase continuously accumulates a nonzero integer multiple m of 2? around said point.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: December 6, 2022
    Assignee: TECHNION RESEARCH & DEVELOPMENT FOUNDATION LIMITED
    Inventors: Boris Simkhovich, Gilad Rosenblatt, Meir Orenstein
  • Publication number: 20220182070
    Abstract: In certain examples, methods and semiconductor structures are directed to an apparatus including a photon emitter such as an LED which operates over an emission wavelength range and a photo-voltaic device arranged relative to the photon emitter to provide index-matched optical coupling between the photo-voltaic device and the photon emitter for an emission wavelength range of the photon emitter.
    Type: Application
    Filed: December 3, 2021
    Publication date: June 9, 2022
    Inventors: Shanhui Fan, Bo Zhao, Sid Assawaworrarit, Parthiban Santhanam, Meir Orenstein
  • Publication number: 20210072163
    Abstract: A monitoring system and method are presented for use in monitoring a target. The monitoring system comprises: an input utility for receiving input data comprising measured data indicative of optical response of the target measured under predetermined conditions and comprising phase data indicative of a two-dimensional profile of full phase of the optical response of the target in a predetermined two-dimensional parametric space including a two-dimensional range in which said target exhibits phase singularity; an analyzer module for processing said measured data and extracting at least one phase singularity signature of the target characterizing the target status, the phase singularity signature being formed by a number N of phase singularity points, each corresponding to a condition that the physical phase continuously accumulates a nonzero integer multiple m of 2? around said point.
    Type: Application
    Filed: September 17, 2020
    Publication date: March 11, 2021
    Inventors: Boris SIMKHOVICH, Gilad ROSENBLATT, Meir ORENSTEIN
  • Patent number: 10440244
    Abstract: Imaging apparatus (26) includes an image sensor (30), configured to capture an image of radiation at a target wavelength that is incident on a front surface of the image sensor. A metasurface (28) having a negative permittivity and a negative permeability at the target wavelength is fixed to the front surface of the image sensor.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: October 8, 2019
    Assignee: TECHNION RESEARCH & DEVELOPMENT FOUNDATION LIMITED
    Inventors: Gilad Rosenblatt, Meir Orenstein
  • Publication number: 20180292523
    Abstract: According to first aspect, system for remote monitoring object in predefined space comprising: sonar module and radar module mutually coupled for simultaneously acquiring data about object; processing subsystem configured to: control the sonar module and the radar module; process data; communicate information and instructions with external device. According to second aspect, system for proximity monitoring an object comprising: an array of non-contact sensors simultaneously acquiring data, wherein the data comprising vitals and position of the object; processing subsystem configured to: control array; process data; communicate information and instructions with external device. According to third aspect, a monitoring system comprising: one remote system; one proximity system; SONDAR server; and one control console.
    Type: Application
    Filed: May 31, 2016
    Publication date: October 11, 2018
    Inventors: Meir ORENSTEIN, Oded HAMBURGER, Avital ORENSTEIN, Lilach HAMBURGER
  • Patent number: 9921344
    Abstract: A plasmonic lens is presented comprising a surface for interaction with an input electromagnetic field, wherein this surface has a pattern comprising an arrangement of a plurality of elongated spaced-apart features of a predetermined geometry arranged in a spaced-apart relationship along at least one segment of a spiral curve, each of the pattern features defining an elongated interface for creation of surface waves in response to the interaction with the incident electromagnetic field, such that the pattern provides linear-polarization-independent plasmonic focusing and large area, high contrast, circular polarization dichroic plasmonic focusing.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: March 20, 2018
    Assignee: TECHNION RESEARCH & DEVELOPMENT FOUNDATION LIMITED
    Inventors: Meir Orenstein, Grisha Spektor
  • Publication number: 20170201658
    Abstract: Imaging apparatus (26) includes an image sensor (30), configured to capture an image of radiation at a target wavelength that is incident on a front surface of the image sensor. A metasurface (28) having a negative permittivity and a negative permeability at the target wavelength is fixed to the front surface of the image sensor.
    Type: Application
    Filed: May 26, 2015
    Publication date: July 13, 2017
    Applicant: TECHNION RESEARCH & DEVELOPMENT FOUNDATION LIMITED
    Inventors: Gilad Rosenblatt, Meir Orenstein
  • Publication number: 20160313477
    Abstract: A plasmonic lens is presented comprising a surface for interaction with an input electromagnetic field, wherein this surface has a pattern comprising an arrangement of a plurality of elongated spaced-apart features of a predetermined geometry arranged in a spaced-apart relationship along at least one segment of a spiral curve, each of the pattern features defining an elongated interface for creation of surface waves in response to the interaction with the incident electromagnetic field, such that the pattern provides linear-polarization-independent plasmonic focusing and large area, high contrast, circular polarization dichroic plasmonic focusing.
    Type: Application
    Filed: January 5, 2016
    Publication date: October 27, 2016
    Inventors: Meir Orenstein, Grisha Spektor
  • Patent number: 9158069
    Abstract: An apparatus includes an optical ring resonator, first and second optical couplers, and control circuitry. The first optical coupler is configured to modulate an input optical signal traversing an optical waveguide, by tuning cross-coupling of energy between the optical waveguide and the ring resonator with a first variable coupling coefficient. The second optical coupler is configured to tune cross-coupling of energy between the ring resonator and an auxiliary optical signal, different from the input optical signal, with a second variable coupling coefficient. The control circuitry is configured to modulate the first coupling coefficient with a first control signal so as to modulate the input optical signal, and to modulate the second coupling coefficient with a second control signal, so as to retain a constant electrical-field complex envelope in the ring resonator.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: October 13, 2015
    Assignee: TECHNION RESEARCH & DEVELOPMENT FOUNDATION LTD.
    Inventors: Anna Kodanev, Meir Orenstein
  • Publication number: 20150168126
    Abstract: A system for optical coherence tomography (OCT) is disclosed. The system comprises an optical interferometer apparatus configured to split an optical beam into a reference beam directed to a reference reflector and a sample beam directed to a sample, and to combine a reflected beam from the reference reflector with a returning beam from the sample to form a combined optical signal. The system further comprises a two photon detector configured to detect the combined optical signal by two photon absorption and to provide a corresponding electrical signal, a frequency separation system configured to separate a low frequency component from the electrical signal, and a data processor configured for providing a topographic reconstruction of the sample based, at least in part, on the low frequency component.
    Type: Application
    Filed: May 6, 2013
    Publication date: June 18, 2015
    Applicant: Technion Research & Development Foundation Limited
    Inventors: Amir Nevet, Tomer Michael, Meir Orenstein
  • Patent number: 8921826
    Abstract: A semiconductor device which produces at least 1 W/m2 two photon emission power per area, when operating at one or more temperatures greater than 20 K.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: December 30, 2014
    Assignee: Technion Research & Development Foundation Limited
    Inventors: Alex Hayat, Pavel Ginzburg, Meir Orenstein
  • Publication number: 20140321805
    Abstract: An optical device includes a substrate, a metallic layer, a dielectric filling and a light collection element. The substrate has first and second opposite surfaces, and has a funnel-shaped cavity between a first aperture on the first surface and a second aperture on the second surface. The metallic layer covers an inner wall of the funnel-shaped cavity. The dielectric filling is disposed over the metallic layer and fills the funnel-shaped cavity. The light collection element is coupled to the second aperture, and is configured to collect light that impinges on the first aperture and is directed to the second aperture by the metallic layer and dielectric filling.
    Type: Application
    Filed: April 10, 2014
    Publication date: October 30, 2014
    Applicant: Technion Research & Development Foundation Ltd.
    Inventors: Shay Yosub, Meir Orenstein
  • Publication number: 20140307999
    Abstract: An apparatus includes an optical ring resonator, first and second optical couplers, and control circuitry. The first optical coupler is configured to modulate an input optical signal traversing an optical waveguide, by tuning cross-coupling of energy between the optical waveguide and the ring resonator with a first variable coupling coefficient. The second optical coupler is configured to tune cross-coupling of energy between the ring resonator and an auxiliary optical signal, different from the input optical signal, with a second variable coupling coefficient. The control circuitry is configured to modulate the first coupling coefficient with a first control signal so as to modulate the input optical signal, and to modulate the second coupling coefficient with a second control signal, so as to retain a constant electrical-field complex envelope in the ring resonator.
    Type: Application
    Filed: April 10, 2014
    Publication date: October 16, 2014
    Applicant: Technion Research & Development Foundation Ltd.
    Inventors: Anna Kodanev, Meir Orenstein
  • Patent number: 8669512
    Abstract: A system for measuring one or more characteristics of light of a photon energy Eph from a light source, that can be determined from measuring three-photon absorption events, the system comprising: a) a detector having a band gap material characterized by gap energy between 2.1 and 3 times Eph; b) an optical element configured to concentrate a beam of light from the light source on the detector; c) a signal amplifier that amplifies an output signal indicative of when three photons produced by the light source undergo a three-photon absorption event in the band gap material; and d) an analyzer that analyzes the output signal to count or measure a rate of the three-photon absorption events, and determines the one or more characteristics of the light from the light source.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: March 11, 2014
    Assignee: Technion Research & Development Foundation Limited
    Inventors: Amir Nevet, Alex Hayat, Meir Orenstein
  • Patent number: 8557707
    Abstract: The present invention introduces a new technique allowing the fabrication of high-aspect ratio nanoscale semiconductor structures and local device modifications using FIB technology. The unwanted semiconductor sputtering in the beam tail region prevented by a thin slow-sputter-rate layer which responds much slower and mostly to the high-intensity ion beam center, thus acting as a saturated absorber funnel-like mask for the semiconductor. The protective layer can be deposited locally using FIB, thus enabling this technique for local device modifications, which is impossible using existing technology. Furthermore, such protective layers allow much higher resolution and nanoscale milling can be achieved with very high aspect ratios, e.g. Ti layer results in aspect ratio higher than 10 versus bare semiconductor milling ratio of about 3.
    Type: Grant
    Filed: April 27, 2008
    Date of Patent: October 15, 2013
    Assignee: Technion Research and Development Foundation Ltd.
    Inventors: Alex Hayat, Alex Lahav, Meir Orenstein
  • Publication number: 20120223354
    Abstract: A semiconductor, room-temperature, electrically excited, two-photon device with thick optically active layer is provided. The intrinsic AlGaAs active layer is sandwiched between two intrinsic graded waveguide layers having increased aluminum concentration at increased distance from the active layer. The waveguide structure is sandwiched between two cladding layers of high aluminum concentration, n and p doped respectively. The structure is epitaxially grown on a substrate and further comprises other layers such as buffer, graded layers and contact layers. An etched ridge provides lateral confinement for light. The device provides two-photons gain and may be used in light sources, optical amplifiers, pulse compressors and lasers.
    Type: Application
    Filed: October 17, 2010
    Publication date: September 6, 2012
    Applicant: TECHNION-RESEARCH & DEVELOPMENT FOUNDATION
    Inventors: Alex Hayat, Meir Orenstein, Amir Nevet
  • Publication number: 20120184827
    Abstract: A miniature medical spectrometer is provided, the spectrometer comprises: a room temperature, electrically excited, solid state two photon laser generating high intensity broad wavelength; a light projection optics, projecting said generated light on biological subject; a light collection optics, collecting reflected light from said biological subject; a wavelength selector spectrally analyzing said collected light; a detector, detecting said analyzed light; and a controller analyzing the reflected spectra and calculating result indicative of the medical state of the biological subject based on said spectrum.
    Type: Application
    Filed: June 16, 2010
    Publication date: July 19, 2012
    Inventors: Shoulamit Cohen Shwartz, Meir Orenstein
  • Publication number: 20120160993
    Abstract: A system for measuring one or more characteristics of light of a photon energy Eph from a light source, that can be determined from measuring three-photon absorption events, the system comprising: a) a detector having a band gap material characterized by gap energy between 2.1 and 3 times Eph; b) an optical element configured to concentrate a beam of light from the light source on the detector; c) a signal amplifier that amplifies an output signal indicative of when three photons produced by the light source undergo a three-photon absorption event in the band gap material; and d) an analyzer that analyzes the output signal to count or measure a rate of the three-photon absorption events, and determines the one or more characteristics of the light from the light source.
    Type: Application
    Filed: December 28, 2011
    Publication date: June 28, 2012
    Applicant: Technion Research & Development Foundation Ltd.
    Inventors: Amir Nevet, Alex Hayat, Meir Orenstein