Patents by Inventor James Strohaber

James Strohaber 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 system for precision control of an electric field within the focus of a laser beam
    Patent number: 10007044
    Abstract: Disclosed are various implementations for controlling an electric field within a focused beam of electromagnetic radiation. In one example, among others, a system includes a first birefringent element encodes a first phase shift on a vertical component of a polarization of an input beam. A first wave plate rotates a polarization of an output beam of the first birefringent element by an angle. A second birefringent element encodes a second phase shift to a vertical component of the output beam of the first wave plate. A second wave plate rotates a polarization of the output beam of the second birefringent element by another angle. By mechanically or electronically varying parameters of the system, the polarization in the focus of the beam can be continuously orientated in any desired direction.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: June 26, 2018
    Assignee: Florida A&M University
    Inventor: James Strohaber
  • OPTICAL SYSTEM FOR PRECISION CONTROL OF AN ELECTRIC FIELD WITHIN THE FOCUS OF A LASER BEAM
    Publication number: 20160377779
    Abstract: Disclosed are various implementations for controlling an electric field within a focused beam of electromagnetic radiation. In one example, among others, a system includes a first birefringent element encodes a first phase shift on a vertical component of a polarization of an input beam. A first wave plate rotates a polarization of an output beam of the first birefringent element by an angle. A second birefringent element encodes a second phase shift to a vertical component of the output beam of the first wave plate. A second wave plate rotates a polarization of the output beam of the second birefringent element by another angle. By mechanically or electronically varying parameters of the system, the polarization in the focus of the beam can be continuously orientated in any desired direction.
    Type: Application
    Filed: June 24, 2015
    Publication date: December 29, 2016
    Inventor: James Strohaber