Patents by Inventor Steven George Matsik

Steven George Matsik 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).

  • Dual band photodetector
    Patent number: 8093582
    Abstract: A dual band photodetector for detecting infrared and ultraviolet optical signals is disclosed. Aspects include homojunction and heterojunction detectors comprised of one or more of GaN, AlGaN, and InGaN. In one aspect ultraviolet/infrared dual-band detector is disclosed that is configured to simultaneously detect UV and IR.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: January 10, 2012
    Assignee: Georgia State University Research Foundation, Inc.
    Inventors: A. G. Unil Perera, Steven George Matsik
  • Dual Band Photodetector
    Publication number: 20110049566
    Abstract: A dual band photodetector for detecting infrared and ultraviolet optical signals is disclosed. Aspects include homojunction and heterojunction detectors comprised of one or more of GaN, AlGaN, and InGaN. In one aspect ultraviolet/infrared dual-band detector is disclosed that is configured to simultaneously detect UV and IR.
    Type: Application
    Filed: October 19, 2010
    Publication date: March 3, 2011
    Applicant: GEORGIA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: A.G. Unil Perera, Steven George Matsik
  • Dual band photodetector
    Patent number: 7838869
    Abstract: A dual band photodetector for detecting infrared and ultraviolet optical signals is disclosed. Aspects include homojunction and heterojunction detectors comprised of one or more of GaN, AlGaN, and InGaN. In one aspect ultraviolet/infrared dual-band detector is disclosed that is configured to simultaneously detect UV and IR.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: November 23, 2010
    Assignee: Georgia State University Research Foundation, Inc.
    Inventors: A.G. Unil Perera, Steven George Matsik
  • Heterojunction far infrared photodetector
    Patent number: 7253432
    Abstract: A photodetector and method of detecting far infrared optical signals. In one embodiment of the present invention, the photodetctor has a plurality of N barriers, N being an integer greater than 1, each barrier being a layer of a material made from a first and a second group III elements and a first group V element and characterized by a bandgap. The photodetector further has a plurality of N?1 emitters, each emitter being a layer of material made from a third group III element and a second group V element and characterized by a bandgap different from that of the barriers and having at least one free carrier responsive to optical signals, wherein each emitter is located between two barriers so as to form a heterojunction at each interface between an emitter and a barrier.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: August 7, 2007
    Assignee: Georgia State University Research Foundation, Inc.
    Inventors: A.G. Unil Perera, Steven George Matsik