Patents by Inventor Paul C. DOWDEN

Paul C. DOWDEN 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).

  • Stabilizing laser energy density on a target during pulsed laser deposition of thin films
    Patent number: 9353435
    Abstract: A process for stabilizing laser energy density on a target surface during pulsed laser deposition of thin films controls the focused laser spot on the target. The process involves imaging an image-aperture positioned in the beamline. This eliminates changes in the beam dimensions of the laser. A continuously variable attenuator located in between the output of the laser and the imaged image-aperture adjusts the energy to a desired level by running the laser in a “constant voltage” mode. The process provides reproducibility and controllability for deposition of electronic thin films by pulsed laser deposition.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: May 31, 2016
    Assignee: Los Alamos National Security, LLC
    Inventors: Paul C. Dowden, Quanxi Jia
  • STABILIZING LASER ENERGY DENSITY ON A TARGET DURING PULSED LASER DEPOSITION OF THIN FILMS
    Publication number: 20150093519
    Abstract: A process for stabilizing laser energy density on a target surface during pulsed laser deposition of thin films controls the focused laser spot on the target. The process involves imaging an image-aperture positioned in the beamline. This eliminates changes in the beam dimensions of the laser. A continuously variable attenuator located in between the output of the laser and the imaged image-aperture adjusts the energy to a desired level by running the laser in a “constant voltage” mode. The process provides reproducibility and controllability for deposition of electronic thin films by pulsed laser deposition.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Applicant: Los Alamos National Security, LLC
    Inventors: Paul C. DOWDEN, Quanxi JIA