Patents Assigned to Soreq Nuclear Research Center
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Patent number: 11982781Abstract: A seismic source apparatus, configured to be maneuvered by a vehicle over terrain.Type: GrantFiled: April 10, 2023Date of Patent: May 14, 2024Assignees: ELBIT SYSTEMS CAI AND CYBER LTD, SOREQ NUCLEAR RESEARCH CENTERInventors: Aner Lev, Barak Alfassi, Alon Refael Heimer, Shai Mordechai Butzin
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Patent number: 11982836Abstract: An optical fiber heating device includes a heat producing fiber wrapped around a cell which is filled with an atom vapor.Type: GrantFiled: March 23, 2021Date of Patent: May 14, 2024Assignee: Soreq Nuclear Research CenterInventors: Bruno Sfez, Yoav Sintov, Shaul Pearl
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Patent number: 11921254Abstract: An optical seismic surveying system including, a multibeam laser source including a plurality of laser-sources, a Diffractive-Optical-Element (DOE), an imager and a processor. The laser-sources direct respective laser-beams toward a single common focal point. The DOE is located at a single common focal point and configured to split each laser-beam into a plurality of laser-beams, toward an instantaneous area of interest. The laser-beams impinging on the instantaneous area of interest produce a laser spot assemblage including a plurality of laser spots. The imager acquires a plurality of defocused images of speckle patterns produced by diffused reflections of the laser spots. The speckle pattern correspond to a respective laser spot and thus to a respective sensing point in the instantaneous area of interest.Type: GrantFiled: February 9, 2022Date of Patent: March 5, 2024Assignees: ELBIT SYSTEMS LAND AND C4I LTD., SOREQ NUCLEAR RESEARCH CENTERInventors: Aner Lev, Shai Mordechai Butzin, Barak Alfassi, Alon Refael Heimer
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Publication number: 20240019648Abstract: A method includes coupling an optical whispering gallery mode (WGM) resonator to an optical fiber by placing the optical fiber on the WGM resonator such that a contact portion of the optical fiber contacts the WGM resonator and two non-contact portions of the optical fiber extend beyond the contact portion, coupling the non-contact portions to locking screws, and adjusting positions of the locking screws to change a dimension of the contact portion.Type: ApplicationFiled: July 19, 2023Publication date: January 18, 2024Applicant: Soreq Nuclear Research CenterInventor: Eyal Yacoby
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Publication number: 20240005142Abstract: A method for performing a nonlinear optical operation includes pumping a laser with an optical signal at a pump wavelength and pumping the laser with an electronic or optical bias that acts as a hyperparameter, filtering out optical output at the pump wavelength so that only light at a lasing wavelength exits the laser, and collecting light exiting the laser for further optical processing or detection.Type: ApplicationFiled: November 3, 2021Publication date: January 4, 2024Applicant: Soreq Nuclear Research CenterInventor: Bruno Sfez
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Publication number: 20230273522Abstract: A method for manufacturing an array of optical fiber ferrules includes producing on a first side of a wafer a pattern of an array of disks or holes (111, 112) in a metallic coating (121, 122). The metallic coating is covered with a negative photoresist layer. A second side of the wafer opposite to the first side is illuminated with light that propagates as a divergent or collimated beam through the photoresist layer, thereby creating a conical pattern within the photoresist layer. The photoresist layer is developed to create conical apertures. A sheet with a conical openings pattern registered to the conical apertures is attached so that a small diameter of each conical opening of the sheet is smaller than, and in contact with, a large diameter of the conical aperture to which it is registered, thereby forming an array of optical fiber ferrules.Type: ApplicationFiled: July 29, 2021Publication date: August 31, 2023Applicant: Soreq Nuclear Research CenterInventors: Bruno Sfez, Neta Arad-Vosk, Netanel Malka
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Publication number: 20230119397Abstract: An optical fiber heating device includes a heat producing fiber wrapped around a cell which is filled with an atom vapor.Type: ApplicationFiled: March 23, 2021Publication date: April 20, 2023Applicant: Soreq Nuclear Research CenterInventors: Bruno Sfez, Yoav Sintov, Shaul Pearl
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Publication number: 20230040734Abstract: A high-voltage fast-avalanche diode, being a silicon-avalanche shaper or sharpener (SAS), has a thick active region above 300 microns in thickness.Type: ApplicationFiled: October 21, 2020Publication date: February 9, 2023Applicant: Soreq Nuclear Research CenterInventors: Amit Kesar, Gil Atar, Shoval Zoran, Doron Cohen-Elias
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Publication number: 20230019700Abstract: An apparatus for fusion welding one or several parallel optical fibers (102) to the same number of waveguides (101) includes a fiber guiding device and a highly reflective surface (104) located below the fiber for each fiber-waveguide pair, and a laser beam (103) whose wavelength is chosen such that its light is strongly absorbed by the fiber material and its shape is properly adjusted.Type: ApplicationFiled: December 20, 2020Publication date: January 19, 2023Applicant: Soreq Nuclear Research CenterInventors: Bruno Sfez, Neta Arad-Vosk, Netanel Malka
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Publication number: 20220415671Abstract: A method for efficient heat removal from a semiconducting device made from III-V semiconductor crystals includes depositing a diamond seeding layer on a patterned substrate.Type: ApplicationFiled: December 24, 2020Publication date: December 29, 2022Applicant: Soreq Nuclear Research CenterInventors: Bruno Sfez, Oren Steinberg, Irina Gouzman, Asaf Bolker
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Patent number: 11508195Abstract: The present invention relates to an access control system, an access object and a method for access control. The access control system comprises an access request receiving device being configured and operable for receiving an access object; the access request receiving device comprising an emitter configured and operable for irradiating the access object with a radiation having a wavelength in the range of about 10?12 and 10?9 m and a detector configured and operable for detecting a response signal from the irradiated access object; a control circuit being configured and operable to receive the response signal from the access request receiving device and process the response signal to identify spectral features indicative of an XRF signature of the access object; wherein the control circuit is adapted to generate an unlocking signal for switching a module device between a locked state and an unlocked state upon identification of the XRF signature.Type: GrantFiled: March 21, 2017Date of Patent: November 22, 2022Assignees: Soreq Nuclear Research Center, Security Matters Ltd.Inventors: Yair Grof, Tzemah Kislev, Nadav Yoran, Haggai Alon
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Publication number: 20220349803Abstract: An apparatus for generating a two dimensional map representative of a turbid or clear medium (11) includes a system (12) for generating incoherent light within a medium (11), a light collecting system (13) that is movable or stationary relative to the medium (11) being analyzed and that is arranged for collecting light exiting the medium (11), and a spectrum analyzer (14) configured to determine spectrum data of the light exiting the turbid medium (11) and to transmit the spectrum data to a computing unit (15). The computing unit (15) is configured to generate a two dimensional map, in which one dimension of the map is wavelength and a second dimension is a position of the light collecting system (13). The invention is also direct-ed to a method for classifying media using the two dimensional map generated with the apparatus. The method comprises steps of feeding and training neural networks and using the trained neural networks to classify unknown media.Type: ApplicationFiled: August 6, 2020Publication date: November 3, 2022Applicant: Soreq Nuclear Research CenterInventors: Bruno Sfez, Neta Arad-Vosk
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Patent number: 11474296Abstract: A fiber mode sorter includes an optical fiber including a waveguide structure configured to maintain an orbital angular momentum (OAM) of a beam propagating through the optical fiber, and an OAM mode sorter placed on a core of the optical fiber.Type: GrantFiled: August 7, 2019Date of Patent: October 18, 2022Assignee: Soreq Nuclear Research CenterInventors: Shiomi Lightman, Gilad Hurvitz, Razi Gvishi, Ady Arie
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Patent number: 11446951Abstract: Provided is an anti-counterfeit marking technique for verifying authenticity of objects using x-ray fluorescence (XRF) analysis.Type: GrantFiled: February 2, 2017Date of Patent: September 20, 2022Assignees: SOREQ NUCLEAR RESEARCH CENTER, SECURITY MATTERS LTD.Inventors: Yair Grof, Tzemah Kislev, Nadav Yoran, Yaara Bondy, Haggai Alon
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Patent number: 11434162Abstract: A radiation pumped heater includes a ceramic substrate which is heated by a laser beam to a steady state temperature. An optical fiber is heated by conduction and radiation emitted from the ceramic substrate.Type: GrantFiled: October 16, 2016Date of Patent: September 6, 2022Assignee: Soreq Nuclear Research CenterInventor: Sharone Goldring
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Patent number: 11320384Abstract: Method and systems are presented for authentication of precious stones, according to their natural ID and/or predetermined markings created in the stones, based on unique characteristic radiation response of the stone to predetermined primary radiation.Type: GrantFiled: August 29, 2017Date of Patent: May 3, 2022Assignees: SOREQ NUCLEAR RESEARCH CENTER, SECURITY MATTERS LTD., YAHIOMA TECHNOLOGIES INC.Inventors: Yair Grof, Tzemah Kislev, Nadav Yoran, Haggai Alon, Mor Kaplinsky
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Publication number: 20220065232Abstract: Resistive heating elements are embedded in a shape memory polymer actuator. Sensing elements are associated with the resistive heating elements. The sensing elements sense changes in the resistive heating elements and correlate the changes with deformation of the shape memory polymer actuator.Type: ApplicationFiled: December 29, 2019Publication date: March 3, 2022Applicants: Soreq Nuclear Research Center, Ramot at Tel-Aviv University Ltd.Inventors: Ronen Verker, Debby Margoy, Irina Gouzman, Eitan Grossman, Asaf Bolker, Noam Eliaz
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Patent number: 11204325Abstract: A system includes a laser (1) operative to emit a light beam, a beam splitter (2) arranged to split the light beam into a first beam and a second beam, the first beam being directed to a nonlinear converter (8) that generates a signal beam having a Stokes-shifted wavelength, a recombiner (9) arranged to recombine the signal beam with the second beam to form a recombined beam which is directed to a tapered optical fiber (5) located within a material to be monitored, and a detector (7) arranged to detect light emitted by the tapered optical fiber (5) and which uses stimulated Raman spectroscopy to detect a chemical in the material.Type: GrantFiled: May 26, 2019Date of Patent: December 21, 2021Assignee: Soreq Nuclear Research CenterInventors: Bruno Sfez, Shaul Pearl, Sharone Goldring, Yoav Sintov
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Publication number: 20210389611Abstract: An apparatus includes a dispersive-collimating element, a Faraday material apparatus and a focusing-dispersive element. The dispersive-collimating element assigns each beam wavelength to a particular spatial position. The beams are parallel one to the other. The Faraday material apparatus provides a polarization rotation independently for each wavelength, and the focusing-dispersive element recombines the different wavelengths into one single beam.Type: ApplicationFiled: October 8, 2019Publication date: December 16, 2021Applicant: Soreq Nuclear Research CenterInventor: Bruno Sfez
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Patent number: 11201609Abstract: A pulsed-power circuit includes first, second, third and fourth compression stages. The first and second stages each include at least one pre-charged capacitor and at least one inductor in series, and at least one switch operative to pump a DSRD (drift-step-recovery diode). The pre-charged capacitor of the second stage is pre-charged in negative direction with respect to the pre-charged capacitor of the first stage. The third and fourth stages each include at least one DSRD. The switches of the first and second stage are operative to drive (pump and then pulse) the DSRDs of the third and fourth stages.Type: GrantFiled: March 27, 2018Date of Patent: December 14, 2021Assignee: Soreq Nuclear Research CenterInventor: Amit Kesar