Patents by Inventor Stephen P. Powell

Stephen P. Powell 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).

  • Coupled Plasmonic Waveguides and Associated Apparatuses and Methods
    Publication number: 20140099054
    Abstract: An apparatus and corresponding method in which the apparatus includes a dielectric waveguide and a metallic waveguide. The dielectric waveguide has an effective mode index and a longitudinal dimension. The metallic waveguide has a longitudinal dimension and supports a surface plasmonic mode of propagation for a wavelength lambda. The metallic waveguide and the dielectric waveguide are adjacent to each other and overlap each other by a length along the longitudinal dimensions of both the dielectric waveguide and the metallic waveguide, wherein the length is greater than the wavelength lambda in the metallic waveguide. The metallic waveguide is coupled to the dielectric waveguide where the metallic waveguide and the dielectric waveguide overlap each other.
    Type: Application
    Filed: December 11, 2013
    Publication date: April 10, 2014
    Applicant: Carnegie Mellon University
    Inventors: Eric J. Black, James A. Bain, Stephen P. Powell, Tuviah E. Schlesinger
  • COUPLED PLASMONIC WAVEGUIDES AND ASSOCIATED APPARATUSES AND METHODS
    Publication number: 20110280515
    Abstract: An apparatus and corresponding method in which the apparatus includes a dielectric waveguide and a metallic waveguide. The dielectric waveguide has an effective mode index and a longitudinal dimension. The metallic waveguide has a longitudinal dimension and supports a surface plasmonic mode of propagation for a wavelength lambda. The metallic waveguide and the dielectric waveguide are adjacent to each other and overlap each other by a length along the longitudinal dimensions of both the dielectric waveguide and the metallic waveguide, wherein the length is greater than the wavelength lambda in the metallic waveguide. The metallic waveguide is coupled to the dielectric waveguide where the metallic waveguide and the dielectric waveguide overlap each other.
    Type: Application
    Filed: May 14, 2010
    Publication date: November 17, 2011
    Applicant: Carnegie Mellon University
    Inventors: Eric J. Black, James A. Bain, Stephen P. Powell, Tuviah E. Schlesinger