Patents by Inventor Alexander P. Paugurt

Alexander P. Paugurt 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).

  • Method for spectral filtering of optical radiation
    Publication number: 20020141063
    Abstract: The present invention provides a device and method of spectral filtration of optical radiation by forming a holographic diffraction grating in a photorefractive medium. The photorefractive medium can be a crystal, a polymer or any other material with suitable photorefractive properties. The wavelength of the filtered radiation can be selected depending on the electrooptical properties of the photorefractive material, by applying an electric field and, in addition, by sufficiently high transfer function parameters achieved due to a high diffraction efficiency of the grating can be obtained.
    Type: Application
    Filed: January 9, 2002
    Publication date: October 3, 2002
    Inventors: Michael P. Petrov, Alexander V. Shamrai, Victor M. Petrov, Alexander P. Paugurt