Patents by Inventor Jamal I. Mustafa

Jamal I. Mustafa 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: 11953765
    Abstract: A method is provided for operating one or more one solid-state electro-optic device to provide an electrically switching shutter. The method includes forming an alternating stack of first semiconductor layers having a first dopant and second semiconductor layers having a second dopant to form at least one superlattice semiconductor device. The method further includes applying to the at least one superlattice semiconductor device a first voltage to induce a transparent state of the alternating stack such that light is transmitted through the alternating stack, and applying to the at least one superlattice semiconductor device a second voltage different from the first voltage to induce an opaque state of the alternating stack such that light is inhibited from passing through the alternating stack.
    Type: Grant
    Filed: April 10, 2023
    Date of Patent: April 9, 2024
    Assignee: RAYTHEON COMPANY
    Inventors: Jamal I. Mustafa, Justin Gordon Adams Wehner, Christopher R. Koontz
  • Patent number: 11757050
    Abstract: A system includes a substrate. The system also includes a detector array disposed over the substrate, where the detector array includes multiple detector pixels. The system further includes multiple plasmonic gratings disposed over top surfaces of the detector pixels, where each plasmonic grating includes multiple convex polyhedrons separated by valleys. Each detector pixel may have a mesa shape, and the convex polyhedrons of the plasmonic gratings may have a smaller size than the mesa shape of the detector pixels. A dimension across a base of each convex polyhedron of the plasmonic gratings may be selected based on a desired resonance wavelength of the plasmonic gratings.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: September 12, 2023
    Assignee: Raytheon Company
    Inventor: Jamal I. Mustafa
  • Publication number: 20230244096
    Abstract: A method is provided for operating one or more one solid-state electro-optic device to provide an electrically switching shutter. The method includes forming an alternating stack of first semiconductor layers having a first dopant and second semiconductor layers having a second dopant to form at least one superlattice semiconductor device. The method further includes applying to the at least one superlattice semiconductor device a first voltage to induce a transparent state of the alternating stack such that light is transmitted through the alternating stack, and applying to the at least one superlattice semiconductor device a second voltage different from the first voltage to induce an opaque state of the alternating stack such that light is inhibited from passing through the alternating stack.
    Type: Application
    Filed: April 10, 2023
    Publication date: August 3, 2023
    Inventors: Jamal I. Mustafa, Justin Gordon Adams Wehner, Christopher R. Koontz
  • Patent number: 11710756
    Abstract: A direct-bond hybridization (DBH) method is provided to assemble a sensor wafer device. The DBH method includes fabricating an optical element on a handle wafer and depositing first oxide with n-x thickness on the optical element where n is an expected final oxide thickness of the sensor wafer, depositing second oxide with x thickness onto a sensor wafer, executing layer transfer of the optical element by a DBH fusion bond technique to the sensor wafer whereby the first and second oxides form an oxide layer of n thickness between the optical element and the sensor wafer and removing the handle wafer.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: July 25, 2023
    Assignee: RAYTHEON COMPANY
    Inventors: Jamal I. Mustafa, Robert C. Anderson, John L. Vampola, Sean P. Kilcoyne, Eric R. Miller, George Grama
  • Patent number: 11650438
    Abstract: A method is provided for operating one or more one solid-state electro-optic device to provide an electrically switching shutter. The method includes forming an alternating stack of first semiconductor layers having a first dopant and second semiconductor layers having a second dopant to form at least one superlattice semiconductor device. The method further includes applying to the at least one superlattice semiconductor device a first voltage to induce a transparent state of the alternating stack such that light is transmitted through the alternating stack, and applying to the at least one superlattice semiconductor device a second voltage different from the first voltage to induce an opaque state of the alternating stack such that light is inhibited from passing through the alternating stack.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: May 16, 2023
    Assignee: RAYTHEON COMPANY
    Inventors: Jamal I. Mustafa, Justin Gordon Adams Wehner, Christopher R. Koontz
  • Patent number: 11598673
    Abstract: A sensing element of an infrared detector including a first absorber configured to form a first set of minority carriers upon receipt of an infrared flux, a collector, a first barrier disposed between the first absorber and the collector, a second absorber configured to form a second set of minority carriers upon receipt of the infrared flux, and a second barrier disposed between the second absorber and the collector. In response to a voltage being applied to the collector, the first and second set of minority carriers are collected at the collector.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: March 7, 2023
    Assignee: Raytheon Company
    Inventors: David R. Rhiger, Edward P. Smith, Jamal I. Mustafa
  • Publication number: 20230032232
    Abstract: An optical device and method of forming the optical device include a substrate having an integrated metal pattern proximate a detector or top absorber layer to minimize diffraction effects. The integrated metal pattern is aligned with selective regions of the pixel array structure of the detector layer for masking pixels of the pixel array structure. The pattern of the integrated metal pattern may be used for alignment with modulation transfer function (MTF) structures of the detector layer for MTF testing, for alignment with reference pixels of the detector layer for spatial reference used during calibration of the optical device, or for forming a polarizer grid.
    Type: Application
    Filed: July 31, 2021
    Publication date: February 2, 2023
    Inventors: Jamal I. Mustafa, Richard J. Peralta
  • Publication number: 20220163397
    Abstract: A sensing element of an infrared detector including a first absorber configured to form a first set of minority carriers upon receipt of an infrared flux, a collector, a first barrier disposed between the first absorber and the collector, a second absorber configured to form a second set of minority carriers upon receipt of the infrared flux, and a second barrier disposed between the second absorber and the collector. In response to a voltage being applied to the collector, the first and second set of minority carriers are collected at the collector.
    Type: Application
    Filed: November 20, 2020
    Publication date: May 26, 2022
    Applicant: Raytheon Company
    Inventors: David R. Rhiger, Edward P. Smith, Jamal I. Mustafa
  • Publication number: 20220157881
    Abstract: A direct-bond hybridization (DBH) method is provided to assemble a sensor wafer device. The DBH method includes fabricating an optical element on a handle wafer and depositing first oxide with n-x thickness on the optical element where n is an expected final oxide thickness of the sensor wafer, depositing second oxide with x thickness onto a sensor wafer, executing layer transfer of the optical element by a DBH fusion bond technique to the sensor wafer whereby the first and second oxides form an oxide layer of n thickness between the optical element and the sensor wafer and removing the handle wafer.
    Type: Application
    Filed: November 19, 2020
    Publication date: May 19, 2022
    Inventors: Jamal I. Mustafa, Robert C. Anderson, John L. Vampola, Sean P. Kilcoyne, Eric R. Miller, George Grama
  • Publication number: 20220158002
    Abstract: A system includes a substrate. The system also includes a detector array disposed over the substrate, where the detector array includes multiple detector pixels. The system further includes multiple plasmonic gratings disposed over top surfaces of the detector pixels, where each plasmonic grating includes multiple convex polyhedrons separated by valleys. Each detector pixel may have a mesa shape, and the convex polyhedrons of the plasmonic gratings may have a smaller size than the mesa shape of the detector pixels. A dimension across a base of each convex polyhedron of the plasmonic gratings may be selected based on a desired resonance wavelength of the plasmonic gratings.
    Type: Application
    Filed: November 17, 2020
    Publication date: May 19, 2022
    Inventor: Jamal I. Mustafa
  • Publication number: 20210033893
    Abstract: A method is provided for operating one or more one solid-state electro-optic device to provide an electrically switching shutter. The method includes forming an alternating stack of first semiconductor layers having a first dopant and second semiconductor layers having a second dopant to form at least one superlattice semiconductor device. The method further includes applying to the at least one superlattice semiconductor device a first voltage to induce a transparent state of the alternating stack such that light is transmitted through the alternating stack, and applying to the at least one superlattice semiconductor device a second voltage different from the first voltage to induce an opaque state of the alternating stack such that light is inhibited from passing through the alternating stack.
    Type: Application
    Filed: August 2, 2019
    Publication date: February 4, 2021
    Inventors: Jamal I. Mustafa, Justin Gordon Adams Wehner, Christopher R. Koontz