Patents by Inventor Duminda Sanjeewa

Duminda Sanjeewa 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).

  • Faraday rotators of terbium oxyhydroxide
    Patent number: 10942381
    Abstract: Terbium-based Faraday rotators, optical isolators incorporating the Faraday rotators, and methods for forming the Faraday rotators are described. Formation methods include hydrothermal growth methods for forming monolithic single crystals of TbO(OH) as Faraday rotator materials. TbO(OH) can also be used as a starting material in a hydrothermal growth method to form monolithic single crystals of TbxYb(2-x)O3, in which x is between about 0.05 and about 1 or terbium aluminum garnet TAG for use as a Faraday rotator in an optical isolator.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: March 9, 2021
    Assignee: Clemson University of Research Foundation
    Inventors: Joseph William Kolis, Duminda Sanjeewa, Kyle Fulle
  • FARADAY ROTATORS OF TERBIUM OXYHYDROXIDE
    Publication number: 20190018265
    Abstract: Terbium-based Faraday rotators, optical isolators incorporating the Faraday rotators, and methods for forming the Faraday rotators are described. Formation methods include hydrothermal growth methods for forming monolithic single crystals of TbO(OH) as Faraday rotator materials. TbO(OH) can also be used as a starting material in a hydrothermal growth method to form monolithic single crystals of TbxYb(2-x)O3, in which x is between about 0.05 and about 1 or terbium aluminum garnet TAG for use as a Faraday rotator in an optical isolator.
    Type: Application
    Filed: July 13, 2018
    Publication date: January 17, 2019
    Inventors: JOSEPH WILLIAM KOLIS, Duminda Sanjeewa, Kyle Fulle