Patents by Inventor Henry O. Everitt

Henry O. Everitt 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).

  • Widely tunable compact terahertz gas lasers
    Patent number: 11973306
    Abstract: Disclosed is a laser system including a first laser and a second laser. The first laser includes a laser cavity, and a gas phase molecular gain medium disposed in the laser cavity, the gain medium having an absorption band. The second laser is a solid state laser configured to be continuously tunable, with respect to an emission wavelength of the second laser, over the absorption band of the gain medium, and the second laser is tuned to pump rotational vibrational transitions in the gain medium to achieve a rotational population inversion.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: April 30, 2024
    Assignees: PRESIDENT AND FELLOWS OF HARVARD COLLEGE, Massachusetts Institute of Technology, The United States of America as Represented by the Secretary of the Army
    Inventors: Paul Chevalier, Arman Amirzhan, Marco Piccardo, Fan Wang, Steven Glen Johnson, Henry O. Everitt, Federico Capasso
  • WIDELY TUNABLE COMPACT TERAHERTZ GAS LASERS
    Publication number: 20220399696
    Abstract: Disclosed is a laser system including a first laser and a second laser. The first laser includes a laser cavity, and a gas phase molecular gain medium disposed in the laser cavity, the gain medium having an absorption band. The second laser is a solid state laser configured to be continuously tunable, with respect to an emission wavelength of the second laser, over the absorption band of the gain medium, and the second laser is tuned to pump rotational vibrational transitions in the gain medium to achieve a rotational population inversion.
    Type: Application
    Filed: November 12, 2020
    Publication date: December 15, 2022
    Applicants: PRESIDENT AND FELLOWS OF HARVARD COLLEGE, Massachusetts Institute of Technology, The United States of America as Represented by the Secretary of the Army
    Inventors: Paul Chevalier, Arman Amirzhan, Marco Piccardo, Fan Wang, Steven Glen Johnson, Henry O. Everitt, Federico CAPASSO
  • Bright visible wavelength luminescent nanostructures and methods of making and devices for using the same
    Publication number: 20090212282
    Abstract: Luminescent nanostructures (e.g., nanowires) and devices are provided which are capable of emitting bright visible light. The luminescent nanowires are most preferably in the form of a doped ZnO having a spectrally integrated ratio of visible to UV light of at least about 1000 or greater. The dopant for the ZnO luminescent nanowires may be at least one of sulfur, selenium, oxygen, zinc, magnesium, aluminum, with sulfur being especially preferred. The doped ZnO luminescent nanowires may be provided in devices for emitting visible light whereby visible light is emitted by the doped ZnO luminescent nanowires in response to excitation by UV light provided by a UV light source. The device may preferably comprise a transparent or translucent lens covering the UV light source, wherein the doped ZnO luminescent nanowires are present as a coating on a surface of the lens. In some embodiments, the device will comprise multiple UV light sources.
    Type: Application
    Filed: April 13, 2006
    Publication date: August 27, 2009
    Applicant: DUKE UNIVERSITY
    Inventors: Jie Lui, Jianye Li, Henry O. Everitt, Hongying Peng, John V. Foreman