Patents by Inventor Philip Hemmer

Philip Hemmer 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).

  • Patent number: 10961449
    Abstract: Nanodiamonds are grown under conditions where diamond-like organic seed molecules do not decompose. This permits engineered growth of fluorescent nanodiamonds wherein a custom designed seed molecule can be incorporated at the center of a nanodiamond. By substituting atoms at particular locations in the seed molecule it is possible to achieve complex multi-atom diamond color centers or even to engineer complete quantum registers. In addition, it is possible to grow ultra-small nanodiamonds, wherein each nanodiamond, no matter how small, can have at least one bright and photostable fluorescent emitter.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: March 30, 2021
    Assignees: The Texas A&M University System, Carnegie Institution of Washington
    Inventors: Philip Hemmer, Todd Zapata, Viktor Struzhkin, Yingwei Fei
  • Publication number: 20170292069
    Abstract: Nanodiamonds are grown under conditions where diamond-like organic seed molecules do not decompose. This permits engineered growth of fluorescent nanodiamonds wherein a custom designed seed molecule can be incorporated at the center of a nanodiamond. By substituting atoms at particular locations in the seed molecule it is possible to achieve complex multi-atom diamond color centers or even to engineer complete quantum registers. In addition, it is possible to grow ultra-small nanodiamonds, wherein each nanodiamond, no matter how small, can have at least one bright and photostable fluorescent emitter.
    Type: Application
    Filed: April 12, 2017
    Publication date: October 12, 2017
    Inventors: Philip Hemmer, Todd Zapata, Viktor Struzhkin, Yingwei Fei
  • Patent number: 5859713
    Abstract: Image derogating optical noise due to light scattering of an object under examination, embedded in a light scattering medium, is substantially reduced by passing a modulated signal laser beam through the scattering medium, and interfering the emerging signal with a coherent modulated reference beam to produce a hologram in a photorefractive member of the object, which in turn is read out of the crystal by a third unmodulated coherent beam to retrieve a clear image of the object. A smart pixel image convertor light valve may be substituted for the photorefractive member.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: January 12, 1999
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Jehad Khoury, Philip Hemmer, Charles L. Woods, Jonathan Kane
  • Patent number: 5684588
    Abstract: Image derogating optical noise due to light scattering of an object under amination, embedded in, or positioned in front of a light scattering medium, is substantially reduced by employing a two-dimensional all optical phase sensitive holographic detector and vibrating the light scattering material at an ultra-sonic frequency to produce both signal sidebands and noise sidebands. Homodyne and hetrodyne techniques are used to filter out sidebands due to the light scattering noise and pass the desired signals, thereby to output a clear image of the object free of optical scatter noise. A smart pixel image converter light valve may be substituted for the photorefractive member.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: November 4, 1997
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: Jehad Khoury, Philip Hemmer, Charles L. Woods, Jonathan Kane