Patents by Inventor Larry K. Warne

Larry K. Warne 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).

  • Patent number: 9685765
    Abstract: A new monolithic resonator metasurface design achieves ultra-high Q-factors while using only one resonator per unit cell. The metasurface relies on breaking the symmetry of otherwise highly symmetric resonators to induce intra-resonator mixing of bright and dark modes (rather than inter-resonator couplings), and is scalable from the near-infrared to radio frequencies and can be easily implemented in dielectric materials. The resulting high-quality-factor Fano metasurface can be used in many sensing, spectral filtering, and modulation applications.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: June 20, 2017
    Assignee: Sandia Corporation
    Inventors: Michael B. Sinclair, Larry K. Warne, Lorena I. Basilio, William L. Langston, Salvatore Campione, Igal Brener, Sheng Liu
  • Publication number: 20170063039
    Abstract: A new monolithic resonator metasurface design achieves ultra-high Q-factors while using only one resonator per unit cell. The metasurface relies on breaking the symmetry of otherwise highly symmetric resonators to induce intra-resonator mixing of bright and dark modes (rather than inter-resonator couplings), and is scalable from the near-infrared to radio frequencies and can be easily implemented in dielectric materials. The resulting high-quality-factor Fano metasurface can be used in many sensing, spectral filtering, and modulation applications.
    Type: Application
    Filed: August 3, 2016
    Publication date: March 2, 2017
    Inventors: Michael B. Sinclair, Larry K. Warne, Lorena I. Basilio, William L. Langston, Salvatore Campione, Igal Brener, Sheng Liu
  • Patent number: 9374887
    Abstract: Resonances can be tuned in dielectric resonators in order to construct single-resonator, negative-index metamaterials. For example, high-contrast inclusions in the form of metallic dipoles can be used to shift the first electric resonance down (in frequency) to the first magnetic resonance, or alternatively, air splits can be used to shift the first magnetic resonance up (in frequency) near the first electric resonance. Degenerate dielectric designs become especially useful in infrared- or visible-frequency applications where the resonator sizes associated with the lack of high-permittivity materials can become of sufficient size to enable propagation of higher-order lattice modes in the resulting medium.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: June 21, 2016
    Assignee: Sandia Corporation
    Inventors: Larry K. Warne, Lorena I. Basilio, William L. Langston, William A. Johnson, Jon Ihlefeld, James C. Ginn, III, Paul G. Clem, Michael B. Sinclair
  • Publication number: 20160156090
    Abstract: Metasurfaces comprise a two-dimensional periodic array of single-resonator unit cells. Single or multiple dielectric gaps can be introduced into the resonator geometry in a manner suggested by perturbation theory, thereby enabling overlap of the electric and magnetic dipole resonances and directional scattering by satisfying the first Kerker condition. The geometries suggested by perturbation theory can achieve purely dipole resonances for metamaterial applications such as wave-front manipulation with Huygens' metasurfaces.
    Type: Application
    Filed: January 21, 2016
    Publication date: June 2, 2016
    Inventors: Salvatore Campione, Michael B. Sinclair, Lorena I. Basilio, Larry K. Warne
  • Patent number: 6853196
    Abstract: A method for electrical cable testing by Pulse-Arrested Spark Discharge (PASD) uses the cable response to a short-duration high-voltage incident pulse to determine the location of an electrical breakdown that occurs at a defect site in the cable. The apparatus for cable testing by PASD includes a pulser for generating the short-duration high-voltage incident pulse, at least one diagnostic sensor to detect the incident pulse and the breakdown-induced reflected and/or transmitted pulses propagating from the electrical breakdown at the defect site, and a transient recorder to record the cable response. The method and apparatus are particularly useful to determine the location of defect sites in critical but inaccessible electrical cabling systems in aging aircraft, ships, nuclear power plants, and industrial complexes.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: February 8, 2005
    Assignee: Sandia Corporation
    Inventors: John R. Barnum, Larry K. Warne, Roy E. Jorgenson, Larry X. Schneider