Patents by Inventor Laddawan R. Miko

Laddawan R. Miko 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).

  • DETECTOR FOR DUAL BAND ULTRAVIOLET DETECTION
    Publication number: 20110284756
    Abstract: The invention concerns a single detector with two designable wavelengths and bandwidths for ultraviolet detection based on n?/n+-GaN and AlGaN structures grown over sapphire substrates. The detector has several layers grown over a sapphire substrates, including a buffer layer comprising AlN; a first band-edge comprising AlX Ga1-X N; a second band-edge comprising AlYGa1-Y N; a third band-edge comprising AlZ Ga1-Z N. The detector also has ohmic contacts formed on the AlX Ga1-X N band-edge. A bias voltage is applied to the detector through the ohmic contacts so as to select a range of wavelengths in the UV region of interest.
    Type: Application
    Filed: April 22, 2011
    Publication date: November 24, 2011
    Inventors: Laddawan R. Miko, David E. Franz, Carl M. Stahle, Bing Guan, Diane E. Pugel, Shahid Aslam
  • DETECTOR FOR DUAL BAND ULTRAVIOLET DETECTION
    Publication number: 20100012849
    Abstract: The invention concerns a single detector with two designable wavelengths and bandwidths for ultraviolet detection based on n?/n+-GaN and AlGaN structures grown over sapphire substrates. The detector has several layers grown over a sapphire substrates, including a buffer layer comprising AlN; a first band-edge comprising AlXGa1-XN; a second band-edge comprising AlYGa1-YN; a third band-edge comprising AlZGa1-ZN. The detector also has ohmic contacts formed on the AlXGa1-XN band-edge. A bias voltage is applied to the detector through the ohmic contacts so as to select a range of wavelengths in the UV region of interest.
    Type: Application
    Filed: July 21, 2008
    Publication date: January 21, 2010
    Applicant: United States of America as represented by the Administrator of the National Aeronautics and Spac
    Inventors: Laddawan R. Miko, David Franz, Carl M. Stahle, Bing Guan