Patents by Inventor Jasbinder S. Sanghera

Jasbinder S. Sanghera 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).

  • Publication number: 20240043342
    Abstract: The present invention provides a method for making a high strength, small grain size ceramic having a transgranular fracture mode by rapid densification of a green body and subsequent cooling of the densified ceramic. The ceramic may include dislocations, defects, dopants, and/or secondary phases that are formed as a result of the process and resulting in stress fields capable of redirecting or arresting cracks within the material. This ceramic can maintain transparency from ultraviolet to mid-wave infrared.
    Type: Application
    Filed: October 17, 2023
    Publication date: February 8, 2024
    Inventors: Michael Hunt, Guillermo R. Villalobos, Benjamin Rock, Shyam S. Bayya, Woohong Kim, Ishwar D. Aggarwal, Bryan Sadowski, Jasbinder S. Sanghera
  • Patent number: 11827008
    Abstract: A method for bonding infrared transparent materials by placing a polymer comprising at least one chalcogenide element and crosslinking moieties between infrared-transparent optical elements and applying heat, pressure, or both. The crosslinking moieties may be organic, inorganic, or both. Also disclosed is the related bonded assembly comprising infrared transparent optical elements.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: November 28, 2023
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Darryl A. Boyd, Jason D. Myers, Vinh Q. Nguyen, Daniel J. Gibson, Colin C. Baker, Woohong Kim, Jasbinder S. Sanghera
  • Patent number: 11807580
    Abstract: The present invention provides a method for making a high strength, small grain size ceramic having a transgranular fracture mode by rapid densification of a green body and subsequent cooling of the densified ceramic. The ceramic may include dislocations, defects, dopants, and/or secondary phases that are formed as a result of the process and resulting in stress fields capable of redirecting or arresting cracks within the material. This ceramic can maintain transparency from ultraviolet to mid-wave infrared.
    Type: Grant
    Filed: April 8, 2022
    Date of Patent: November 7, 2023
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Michael Hunt, Guillermo R. Villalobos, Benjamin Rock, Shyam S. Bayya, Woohong Kim, Ishwar D. Aggarwal, Bryan Sadowski, Jasbinder S. Sanghera
  • Publication number: 20230304863
    Abstract: A chemical-detecting apparatus includes an array of sensors. Each sensor of the array of sensors is oriented skyward in operation. Each sensor includes a chemical receiver including a plurality of infrared color vision filters cooperating to detect a plurality of infrared color vision signatures. The plurality of infrared color vision signatures respectively correspond to a plurality of chemicals. Each sensor includes a transmitter configured to transmit a detected chemical identifier, based on a detected infrared color vision signature of the plurality of infrared color vision signatures and corresponding to a detected chemical of the plurality of chemicals, to at least one neighboring sensor of the array of sensors. The transmitter is configured to transmit a detected chemical confirmation from the neighboring sensor to a first-identifying sensor of the array of sensors and is configured to transmit a confirmed chemical alarm, based on the detected chemical confirmation, from the first-identifying sensor.
    Type: Application
    Filed: March 28, 2023
    Publication date: September 28, 2023
    Inventors: KEVIN MAJOR, Kenneth J. Ewing, Robert R. Nicol, L. Brandon Shaw, Jasbinder S. Sanghera
  • Patent number: 11761434
    Abstract: Systems and methods are provided for a mechanical actuator based on a fiber optic platform. A material that is configured to be activated by light may be incorporated into an optical fiber that serves as both an actuator and a power delivery network. This platform is adaptable to different materials, types of motions, and length scales and allows for precise delivery of photons to the material.
    Type: Grant
    Filed: March 8, 2022
    Date of Patent: September 19, 2023
    Assignee: The Government of the United States, as represented by the Secretary of the Navy
    Inventors: Jason D. Myers, Jesse A. Frantz, Jasbinder S. Sanghera, Daniel Rhonehouse, Christopher Bardeen, Colin Baker, Geoffrey Chin, Peter Alexander Morrison
  • Publication number: 20230286871
    Abstract: Disclosed is a method of flash sintering a sample composed of ceramic particles by providing laser energy to change the electrical properties of the ceramic material. The processes and systems disclosed herein do not require large heating equipment like a furnace allowing for a portable system of repairing ceramic materials in the field.
    Type: Application
    Filed: March 23, 2023
    Publication date: September 14, 2023
    Inventors: Guillermo R. Villalobos, Rafael R. Gattass, Michael Hunt, Shyam S. Bayya, Bryan Sadowski, Robert Miklos, Frederic H. Kung, Woohong Kim, L. Brandon Shaw, Jasbinder S. Sanghera, Antti Makinen
  • Patent number: 11731896
    Abstract: The present invention provides for synthesizing high optical quality multicomponent chalcogenide glasses without refractive index perturbations due to striae, phase separation or crystal formation using a two-zone furnace and multiple fining steps. The top and bottom zones are initially heated to the same temperature, and then a temperature gradient is created between the top zone and the bottom zone. The fining and cooling phase is divided into multiple steps with multiple temperature holds.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: August 22, 2023
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Vinh Q. Nguyen, Mikhail Kotov, Daniel J. Gibson, Shyam S. Bayya, Jasbinder S. Sanghera, Gryphon A. Drake
  • Publication number: 20230114053
    Abstract: An apparatus includes a first photonic crystal fiber. The first photonic crystal fiber includes a first dispersion at a pump wavelength. The first photonic crystal fiber includes a zero dispersion. The pump wavelength is within 100 nm of the zero dispersion. The first dispersion is normal. The first photonic crystal fiber includes a first mode field diameter at the pump wavelength. The apparatus also includes a second photonic crystal fiber coupled to the first photonic crystal fiber and outputs a broadband spectrum. The second photonic crystal fiber includes a second dispersion at the pump wavelength. The second dispersion is anomalous. The second dispersion is negative, and the first dispersion is positive. The second photonic crystal fiber includes a second mode field diameter at the pump wavelength. The second mode field diameter is smaller than the first mode field diameter.
    Type: Application
    Filed: December 13, 2022
    Publication date: April 13, 2023
    Inventors: Rafael R. Gattass, L. Brandon Shaw, Daniel L. Rhonehouse, Jasbinder S. Sanghera
  • Patent number: 11557872
    Abstract: Fiber optic amplification includes a photonic crystal fiber coupled to a pump laser through a first coupler. The pump laser emits a first electromagnetic radiation wave into the photonic crystal fiber at a first oscillation frequency and a second electromagnetic radiation wave into the photonic crystal fiber at a second oscillation frequency equaling the first oscillation frequency. The first and second electromagnetic radiation waves interact to generate a signal comprising an electromagnetic radiation wave at a third oscillation frequency and an idler comprising a fourth electromagnetic radiation wave at a fourth oscillation frequency to be generated and amplified through parametric amplification. Parametric amplification is achieved by four wave mixing. The photonic crystal fiber emits a parametric output signal based on the four wave mixing. A nonlinear crystal frequency doubles the parametric output signal through second-harmonic generation.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: January 17, 2023
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: L. Brandon Shaw, Rafael R. Gattass, Rajesh Thapa, Lynda E. Busse, Ishwar D. Aggarwal, Daniel L. Rhonehouse, Jasbinder S. Sanghera, Jason Auxier
  • Publication number: 20220332918
    Abstract: A polymer comprising one or more chalcogenide elements and one or more crosslinking moieties. The crosslinking moieties may be organic, inorganic, or both. Also disclosed is the related method for making a polymer comprising purifying a chalcogenide polymer powder comprising one or more chalcogenide elements, melting the purified chalcogenide polymer powder, adding one or more crosslinking moieties to the melted chalcogenide polymer, and curing the modified chalcogenide polymer at a temperature between 150 and 200° C.
    Type: Application
    Filed: June 30, 2022
    Publication date: October 20, 2022
    Inventors: Darryl A. Boyd, Vinh Q. Nguyen, Nia A. Pollard, Frederic H. Kung, Daniel J. Gibson, Jason D. Myers, Colin C. Baker, Woohong Kim, Jasbinder S. Sanghera
  • Publication number: 20220290660
    Abstract: Systems and methods are provided for a mechanical actuator based on a fiber optic platform. A material that is configured to be activated by light may be incorporated into an optical fiber that serves as both an actuator and a power delivery network. This platform is adaptable to different materials, types of motions, and length scales and allows for precise delivery of photons to the material.
    Type: Application
    Filed: March 8, 2022
    Publication date: September 15, 2022
    Inventors: Jason D. Myers, Jesse A. Frantz, Jasbinder S. Sanghera, Daniel Rhonehouse, Christopher Bardeen, Colin Baker, Geoffrey Chin, Peter Alexander Morrison
  • Publication number: 20220227675
    Abstract: The present invention provides a method for making a high strength, small grain size ceramic having a transgranular fracture mode by rapid densification of a green body and subsequent cooling of the densified ceramic. The ceramic may include dislocations, defects, dopants, and/or secondary phases that are formed as a result of the process and resulting in stress fields capable of redirecting or arresting cracks within the material. This ceramic can maintain transparency from ultraviolet to mid-wave infrared.
    Type: Application
    Filed: April 8, 2022
    Publication date: July 21, 2022
    Inventors: Michael Hunt, Guillermo R. Villalobos, Benjamin Rock, Shyam S. Bayya, Woohong Kim, Ishwar D. Aggarwal, Bryan Sadowski, Jasbinder S. Sanghera
  • Publication number: 20220190173
    Abstract: A composition of matter having a coated silicon substrate with multiple alternating layers of polydopamine and polyallylamine bound copper-indium-gallium oxide (CIGO) nanoparticles on the substrate. A related composition of matter having polyallylamine bound to CIGO nanoparticles to form PAH-coated CIGO nanoparticles. A related CIGO thin film made via conversion of layer-by-layer assembled CIGO nanoparticles and polyelectrolytes. CIGO nanoparticles are created via a flame-spray pyrolysis method using metal nitrate precursors, subsequently coated with polyallylamine (PAH), and dispersed in aqueous solution. Multilayer films are assembled by alternately dipping a substrate into a solution of either polydopamine or polystyrenesulfonate and then in the CIGO-PAH dispersion to fabricate CIGO films as thick as 1-2 microns.
    Type: Application
    Filed: March 7, 2022
    Publication date: June 16, 2022
    Inventors: Walter J. Dressick, Jasbinder S. Sanghera, Woohong Kim, Colin C. Baker, Jason D. Myers, Jesse A. Frantz
  • Patent number: 11329446
    Abstract: An apparatus includes an amplified spontaneous emission source, which in turn includes an optical fiber. The optical fiber includes a solid core and a first end. The solid core includes a silica matrix. The silica matrix includes a rare-earth element and a glass co-dopant. The rare-earth element includes dysprosium or neodymium. The glass co-dopant includes Al2O3. The apparatus further includes a laser pump diode coupled to the first end of the optical fiber. The laser pump diode and the optical fiber cooperate to generate a spontaneous spectral emission confined to the solid core. The spontaneous spectral emission includes a simultaneous plurality of spectral regions.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: May 10, 2022
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Rafael R. Gattass, Colin C. Baker, Augustus Xavier Carlson, L. Brandon Shaw, Jasbinder S. Sanghera
  • Patent number: 11299428
    Abstract: The present invention provides a method for making a high strength, small grain size ceramic having a trans-granular fracture mode by rapid densification of a green body and subsequent cooling of the densified ceramic. The ceramic may include dislocations, defects, dopants, and/or secondary phases that are formed as a result of the process and resulting in stress fields capable of redirecting or arresting cracks within the material. This ceramic can maintain transparency from ultraviolet to mid-wave infrared.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: April 12, 2022
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Michael Hunt, Guillermo R. Villalobos, Benjamin Rock, Shyam S. Bayya, Woohong Kim, Ishwar D. Aggarwal, Bryan Sadowski, Jasbinder S. Sanghera
  • Patent number: 11271124
    Abstract: A composition of matter having a coated silicon substrate with multiple alternating layers of polydopamine and polyallylamine bound copper-indium-gallium oxide (CIGO) nanoparticles on the substrate. A related composition of matter having polyallylamine bound to CIGO nanoparticles to form PAH-coated CIGO nanoparticles. A related CIGO thin film made via conversion of layer-by-layer assembled CIGO nanoparticles and polyelectrolytes. CIGO nanoparticles are created via a flame-spray pyrolysis method using metal nitrate precursors, subsequently coated with polyallylamine (PAH), and dispersed in aqueous solution. Multilayer films are assembled by alternately dipping a substrate into a solution of either polydopamine or polystyrenesulfonate and then in the CIGO-PAH dispersion to fabricate CIGO films as thick as 1-2 microns.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: March 8, 2022
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Walter J. Dressick, Jasbinder S. Sanghera, Woohong Kim, Colin C. Baker, Jason D. Myers, Jesse A. Frantz
  • Patent number: 11231525
    Abstract: The invention relates to methods for fabricating antireflective surface structures (ARSS) on an optical element using a seed layer of material deposited on the surface of the optical element. The seed layer is removed during or after the etching, and serves to control etching time as well as the transmission region of the optical element having ARSS. Optical elements having ARSS on at least one surface are also provided.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: January 25, 2022
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Lynda E. Busse, Jesse A. Frantz, Leslie Brandon Shaw, Jasbinder S. Sanghera, Ishwar D. Aggarwal, Menelaos K. Poutous
  • Publication number: 20210376551
    Abstract: An apparatus includes an amplified spontaneous emission source, which in turn includes an optical fiber. The optical fiber includes a solid core and a first end. The solid core includes a silica matrix. The silica matrix includes a rare-earth element and a glass co-dopant. The rare-earth element includes dysprosium or neodymium. The glass co-dopant includes Al2O3. The apparatus further includes a laser pump diode coupled to the first end of the optical fiber. The laser pump diode and the optical fiber cooperate to generate a spontaneous spectral emission confined to the solid core. The spontaneous spectral emission includes a simultaneous plurality of spectral regions.
    Type: Application
    Filed: August 19, 2020
    Publication date: December 2, 2021
    Inventors: Rafael R. Gattass, Colin C. Baker, Augustus Xavier Carlson, L. Brandon Shaw, Jasbinder S. Sanghera
  • Patent number: 11163207
    Abstract: A liquid crystal-based non-mechanical beam steering device that permits steering in the mid-wave infrared and has a chalcogenide waveguide. The waveguide core, the subcladding, or both comprise a chalcogenide glass. The liquid crystal-based non-mechanical beam steering device has a tapered subcladding and a liquid crystal layer.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: November 2, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Jesse A. Frantz, Jason D. Myers, Robel Y. Bekele, Christopher M. Spillmann, Jawad Naciri, Jakub Kolacz, Henry G. Gotjen, Jason Auxier, Leslie Brandon Shaw, Jasbinder S. Sanghera
  • Publication number: 20210313756
    Abstract: Methods for synthesizing fibers having nanoparticles therein are provided, as well as preforms and fibers incorporating nanoparticles. The nanoparticles may include one or more rare earth ions selected based on fluorescence at eye-safer wavelengths, surrounded by a low-phonon energy host. Nanoparticles that are not doped with rare earth ions may also be included as a co-dopant to help increase solubility of nanoparticles doped with rare earth ions in the silica matrix. The nanoparticles may be incorporated into a preform, which is then drawn to form fiber. The fibers may beneficially be incorporated into lasers and amplifiers that operate at eye safer wavelengths. Lasers and amplifiers incorporating the fibers may also beneficially exhibit reduced Stimulated Brillouin Scattering.
    Type: Application
    Filed: June 22, 2021
    Publication date: October 7, 2021
    Inventors: Colin C. Baker, Edward J. Friebele, Woohong Kim, L. Brandon Shaw, Jasbinder S. Sanghera