Patents by Inventor Harvey Edward Beere

Harvey Edward Beere 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).

  • THz semiconductor laser incorporating a controlled plasmon confinement waveguide
    Patent number: 7382806
    Abstract: A semiconductor laser comprises an active region (12) which, in response to a pumping energy applied thereto, can produce a stimulated emission of radiation with a central wavelength (?) in the far infrared region, and a confinement region (16, 18, 22) suitable for confining the radiation in the active region (12), and comprising at least one interface (16a, 16b, 22a) between adjacent layers that is capable of supporting surface plasmon modes generated by an interaction of the interface with the radiation. The confinement region (16, 18, 22) comprises a wave-guide layer (16) which is delimited on opposite sides by a first interface and by a second interface (16a, 16b).
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: June 3, 2008
    Assignee: INFM Istituto Nazionale per La Fisica Della Materia
    Inventors: Alessandro Tredicucci, Fabio Beltram, Harvey Edward Beere, Alexander Giles Davies, Ruedeger Koehler, Edmund Harold Linfield
  • Thz semiconductor laser incorporating a controlled plasmon confinement waveguide
    Publication number: 20050117618
    Abstract: A semiconductor laser comprises an active region (12) which, in response to a pumping energy applied thereto, can produce a stimulated emission of radiation with a central wavelength (?) in the far infrared region, and a confinement region (16, 18, 22) suitable for confining the radiation in the active region (12), and comprising at least one interface (16a, 16b, 22a) between adjacent layers that is capable of supporting surface plasmon modes generated by an interaction of the interface with the radiation. The confinement region (16, 18, 22) comprises a wave-guide layer (16) which is delimited on opposite sides by a first interface and by a second interface (16a, 16b).
    Type: Application
    Filed: March 24, 2003
    Publication date: June 2, 2005
    Inventors: Alessandro Tredicucci, Fabio Beltram, Ruedeger Koehler, Harvey, Edward Beere, Alexander, Giles Davies, Edmund, Harold Linfield