Patents by Inventor Gil REFAEL

Gil REFAEL 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).

  • Far-infrared detection using Weyl semimetals
    Patent number: 10090466
    Abstract: The generation of photocurrent in an ideal two-dimensional Dirac spectrum is symmetry forbidden. In sharp contrast, a three-dimensional Weyl semimetal can generically support significant photocurrent due to the combination of inversion symmetry breaking and finite tilts of the Weyl spectrum. To realize this photocurrent, a noncentrosymmetric Weyl semimetal is coupled to a pair of electrodes and illuminated with circularly polarized light without any voltage applied to the Weyl semimetal. The wavelength of the incident light can range over tens of microns and can be adjusted by doping the Weyl semimetal to change its chemical potential.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: October 2, 2018
    Assignee: Massachusetts Institute of Technology
    Inventors: Ching-Kit Chan, Patrick A. Lee, Netanel Lindner, Gil Refael, Qiong Ma, Suyang Xu, Nuh Gedik
  • FAR-INFRARED DETECTION USING WEYL SEMIMETALS
    Publication number: 20180026185
    Abstract: The generation of photocurrent in an ideal two-dimensional Dirac spectrum is symmetry forbidden. In sharp contrast, a three-dimensional Weyl semimetal can generically support significant photocurrent due to the combination of inversion symmetry breaking and finite tilts of the Weyl spectrum. To realize this photocurrent, a noncentrosymmetric Weyl semimetal is coupled to a pair of electrodes and illuminated with circularly polarized light without any voltage applied to the Weyl semimetal. The wavelength of the incident light can range over tens of microns and can be adjusted by doping the Weyl semimetal to change its chemical potential.
    Type: Application
    Filed: July 21, 2017
    Publication date: January 25, 2018
    Applicants: Massachusetts Institute of Technology, California Institute of Technology, Technion R&D Foundation
    Inventors: Ching-Kit CHAN, Patrick A. LEE, Netanel LINDNER, Gil REFAEL, Qiong MA, Suyang XU, Nuh GEDIK