Patents by Inventor James E. Toney

James E. Toney 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).

  • Multi-barrier photonic heterostructures
    Patent number: 6940637
    Abstract: An optical heterostructure is provided comprising a matrix and first and second bandgap regions defined in the matrix. The second bandgap region is characterized by a periodic arrangement of inclusions in the matrix. The inclusions have an index of refraction substantially different than the index of refraction of the matrix. The first and second bandgap regions alternate in succession along a primary dimension of optical propagation of the heterostructure device to define a succession including at least one bandgap region of the first type interposed between a pair of bandgap regions of the second type. The first bandgap region defines a first optical bandgap of the optical heterostructure. The second bandgap region defines a second optical bandgap of the optical heterostructure.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: September 6, 2005
    Assignee: Battelle Memorial Institute
    Inventor: James E. Toney
  • Wavelength separation devices incorporating multi-barrier photonic heterostructures
    Patent number: 6934441
    Abstract: A wavelength separation device is provided comprising a plurality of optical heterostructures. The optical heterostructures are characterized by distinct transmission bandwidths. Each of the plurality of optical heterostructures comprises a first bandgap region and a second bandgap region defined in a matrix of the optical heterostructure. The first bandgap region defines a first optical bandgap of the optical heterostructure. The second bandgap region defines a second optical bandgap of the optical heterostructure. The first optical bandgap of the optical heterostructure is centered at a different wavelength than the second optical bandgap of the optical heterostructure such that one of the transmission bandwidths is defined between the first and second optical bandgaps.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: August 23, 2005
    Assignee: Battelle Memorial Institute
    Inventor: James E. Toney
  • Multi-barrier photonic heterostructure
    Publication number: 20040140478
    Abstract: An optical heterostructure is provided comprising a matrix and first and second bandgap regions defined in the matrix. The second bandgap region is characterized by a periodic arrangement of inclusions in the matrix. The inclusions have an index of refraction substantially different than the index of refraction of the matrix. The first and second bandgap regions alternate in succession along a primary dimension of optical propagation of the heterostructure device to define a succession including at least one bandgap region of the first type interposed between a pair of bandgap regions of the second type. The first bandgap region defines a first optical bandgap of the optical heterostructure. The second bandgap region defines a second optical bandgap of the optical heterostructure.
    Type: Application
    Filed: September 9, 2003
    Publication date: July 22, 2004
    Inventor: James E. Toney