Patents by Inventor Ren-Min Ma

Ren-Min Ma 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).

  • Plasmon laser sensor
    Patent number: 10107749
    Abstract: An active plasmon sensor comprising a single crystalline semiconductor CdS nano-slab atop a silver surface separated by a magnesium fluoride (MgF2) gap layer. The surface plasmon effect localizes the electromagnetic field at the interface between the metal and semiconductor, allowing both the device's physical size and mode confinement to shrink down to the nanometer scale in a dimension perpendicular to the metal surface.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: October 23, 2018
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Xiang Zhang, Ren-Min Ma, Sadao Ota
  • Waveguide embedded plasmon laser with multiplexing and electrical modulation
    Patent number: 9748736
    Abstract: This disclosure provides systems, methods, and apparatus related to nanometer scale lasers. In one aspect, a device includes a substrate, a line of metal disposed on the substrate, an insulating material disposed on the line of metal, and a line of semiconductor material disposed on the substrate and the insulating material. The line of semiconductor material overlaying the line of metal, disposed on the insulating material, forms a plasmonic cavity.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: August 29, 2017
    Assignee: The Regents of The University of California
    Inventors: Ren-min Ma, Xiang Zhang
  • WAVEGUIDE EMBEDDED PLASMON LASER WITH MULTIPLEXING AND ELECTRICAL MODULATION
    Publication number: 20170229843
    Abstract: This disclosure provides systems, methods, and apparatus related to nanometer scale lasers. In one aspect, a device includes a substrate, a line of metal disposed on the substrate, an insulating material disposed on the line of metal, and a line of semiconductor material disposed on the substrate and the insulating material. The line of semiconductor material overlaying the line of metal, disposed on the insulating material, forms a plasmonic cavity.
    Type: Application
    Filed: October 11, 2013
    Publication date: August 10, 2017
    Applicant: The Regents of the University of California
    Inventors: Ren-min Ma, Xiang Zhang
  • PLASMON LASER SENSOR
    Publication number: 20160377542
    Abstract: An active plasmon sensor comprising a single crystalline semiconductor CdS nano-slab atop a silver surface separated by a magnesium fluoride (MgF2) gap layer. The surface plasmon effect localizes the electromagnetic field at the interface between the metal and semiconductor, allowing both the device's physical size and mode confinement to shrink down to the nanometer scale in a dimension perpendicular to the metal surface.
    Type: Application
    Filed: June 7, 2016
    Publication date: December 29, 2016
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Xiang Zhang, Ren-Min Ma, Sadao Ota
  • Plasmon lasers at deep subwavelength scale
    Patent number: 8509276
    Abstract: Hybrid plasmonic waveguides are described that employ a high-gain semiconductor nanostructure functioning as a gain medium that is separated from a metal substrate surface by a nanoscale thickness thick low-index gap. The waveguides are capable of efficient generation of sub-wavelength high intensity light and have the potential for large modulation bandwidth >1 THz.
    Type: Grant
    Filed: November 3, 2012
    Date of Patent: August 13, 2013
    Assignee: The Regents of the University of California
    Inventors: Xiang Zhang, Volker Jendrik Sorger, Rupert Francis Maximillian Oulton, Ren-Min Ma