Patents by Inventor Kannatassen Appavoo

Kannatassen Appavoo 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).

  • Ultrathin film lasing
    Patent number: 10585043
    Abstract: Technologies are described for methods to fabricate lasers to amplify light. The methods may comprise depositing nanoparticles on a substrate. The length, width, and height of the nanoparticles may be less than 100 nm. The methods may further comprise distributing the nanoparticles on the substrate to produce a film. The nanoparticles in the film may be coupled nanoparticles. The coupled nanoparticles may be in disordered contact with each other within the film. The distribution may be performed such that constructive interference of the light occurs by multiple scattering at the boundaries of the coupled nanoparticles within the film. The methods may comprise exposing the film to a power source.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: March 10, 2020
    Assignees: Brookhaven Science Associates, LCC, Research Foundation of The City University of New York
    Inventors: Matthew Y. Sfeir, Kannatassen Appavoo, Xiaoze Liu, Vinod M. Menon
  • Ultrathin Film Lasing
    Publication number: 20170324215
    Abstract: Technologies are described for methods to fabricate lasers to amplify light. The methods may comprise depositing nanoparticles on a substrate. The length, width, and height of the nanoparticles may be less than 100 nm. The methods may further comprise distributing the nanoparticles on the substrate to produce a film. The nanoparticles in the film may be coupled nanoparticles. The coupled nanoparticles may be in disordered contact with each other within the film. The distribution may be performed such that constructive interference of the light occurs by multiple scattering at the boundaries of the coupled nanoparticles within the film. The methods may comprise exposing the film to a power source.
    Type: Application
    Filed: May 4, 2017
    Publication date: November 9, 2017
    Applicant: Brookhaven Science Associates, LLC
    Inventors: Matthew Y. Sfeir, Kannatassen Appavoo, Xiaoze Liu, Vinod M. Menon