Patents by Inventor Thomas Matthew Fletcher

Thomas Matthew Fletcher 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).

  • Optical modulation utilizing structures including metamaterials
    Patent number: 8655189
    Abstract: An optical modulation system includes a metamaterial structure configured to receive and process an input optical signal at at least one operational wavelength, where the metamaterial structure changes between a transmissive state and a non-transmissive state with respect to the optical signal(s) at the operational wavelength(s) in response to an external stimulus applied to the metamaterial structure. An external stimulus source is coupled with the metamaterial structure and is configured to change the metamaterial structure between its transmissive and non-transmissive states by applying selected stimulus pulses to the metamaterial structure. The optical modulation system processes the input optical signal to output a modulated optical signal that modulates in correspondence with the selected pulses applied to the metamaterial structure.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: February 18, 2014
    Assignee: Exelis, Inc.
    Inventors: Robert Joseph Almassy, Anthony Bresenhan Kaye, Thomas Matthew Fletcher
  • OPTICAL MODULATION UTILIZING STRUCTURES INCLUDING METAMATERIALS
    Publication number: 20110311234
    Abstract: An optical modulation system includes a metamaterial structure configured to receive and process an input optical signal at at least one operational wavelength, where the metamaterial structure changes between a transmissive state and a non-transmissive state with respect to the optical signal(s) at the operational wavelength(s) in response to an external stimulus applied to the metamaterial structure. An external stimulus source is coupled with the metamaterial structure and is configured to change the metamaterial structure between its transmissive and non-transmissive states by applying selected stimulus pulses to the metamaterial structure. The optical modulation system processes the input optical signal to output a modulated optical signal that modulates in correspondence with the selected pulses applied to the metamaterial structure.
    Type: Application
    Filed: June 18, 2010
    Publication date: December 22, 2011
    Applicant: ITT CORPORATION
    Inventors: Robert Joseph Almassy, Anthony Bresenhan Kaye, Thomas Matthew Fletcher