Patents by Inventor Aleksandar D. RAKIC

Aleksandar D. RAKIC 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).

  • Laser system for imaging and materials analysis
    Patent number: 10180397
    Abstract: A THz quantum cascade laser is used to investigate a target by directing a first beam of laser radiation from the laser at the target to thereby produce a second beam of laser radiation by interaction of the first beam with the target. Self-mixing of the first and second beams occurs within the laser and causes variations in a signal such as the operating voltage of the laser. An operating parameter of the laser that affects the interaction of the first beam with, the target is varied. The operating voltage is monitored and processed to determine phase and amplitude changes associated with material properties of the target. Consequently in one embodiment the invention provides for processing the variations in the signal to produce various images of the target.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: January 15, 2019
    Assignees: The University of Queensland, University of Leeds
    Inventors: Aleksandar D. Rakic, Paul Dean, Alexander Giles Davies, Dragan Indjin, Edmund Harold Linfield, Stephen James Wilson, Thomas Taimre, Karl Bertling, Yah Leng Lim
  • A LASER SYSTEM FOR IMAGING AND MATERIALS ANALYSIS
    Publication number: 20160202180
    Abstract: A THz quantum cascade laser is used to investigate a target by directing a first beam of laser radiation from the laser at the target to thereby produce a second beam of laser radiation by interaction of the first beam with the target. Self-mixing of the first and second beams occurs within the laser and causes variations in a signal such as the operating voltage of the laser. An operating parameter of the laser that affects the interaction of the first beam with, the target is varied. The operating voltage is monitored and processed to determine phase and amplitude changes associated with material properties of the target. Consequently in one embodiment the invention provides for processing the variations in the signal to produce various images of the target.
    Type: Application
    Filed: August 22, 2014
    Publication date: July 14, 2016
    Applicants: The University of Queensland, University of Leeds
    Inventors: Aleksandar D. RAKIC, Paul DEAN, Alexander Giles DAVIS, Dragan INDJIN, Edmund Harold LINFIELD, Stephen James WILSON, Thomas TAIMRE, Karl BERTLING, Yah Leng LIM