Patents by Inventor Erich Gornik

Erich Gornik 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).

  • Surface-emitting laser diode
    Patent number: 5568504
    Abstract: A tunable [tunable] surface-emitting laser diode in which in the manner of the TTG laser diode an active layer (5) and a tuning layer (3) are arranged transverse to one another between contact layers (2, 6) and are separated from one another by a central layer (4), with the result that given suitable doping of the surrounding semiconductor material these layers can be driven separately, and in which above a region provided for generating radiation the semiconductor material has on the surface a spatial periodic structure which is provided with a thin metallic film (7), with the result that during operation of the laser diode radiation is emitted directionally from the surface by means of exciting surface plasmon polaritons, and that this emission direction can be varied by tuning the wavelength of the radiation.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: October 22, 1996
    Assignee: Siemens Aktiengesellschaft
    Inventors: Anton Kock, Erich Gornik
  • Surface-emitting laser diode
    Patent number: 5555255
    Abstract: A surface-emitting laser diode with an active layer (3) between contact layers (2, 4) and reflector arrangements (9, 19) provided for a vertical resonance condition, in which the surface of the semiconductor material is provided with a spatial periodic structure, which is intended for the excitation of surface plasmon polaritons, and is covered with a thin metal film (5).
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: September 10, 1996
    Assignee: Siemens Aktiengesellschaft
    Inventors: Anton Kock, Erich Gornik
  • Tunable infrared and far-infrared source by four-photon mixing
    Patent number: 4095122
    Abstract: The invention relates to a high-power tunable infrared source employing a four-photon mixing process, with three input lasers, in which process the output power is resonantly enhanced by exciton states in the conversion medium.
    Type: Grant
    Filed: August 4, 1977
    Date of Patent: June 13, 1978
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Theodoar Charlouis Damen, Erich Gornik, Van-Tran Nguyen, Chandra Kumar Naranbhai Patel
  • Infrared polarization rotator and optical switch
    Patent number: 4093344
    Abstract: An optical polarization rotator is developed for use with infrared radiation using a nonlinear, two-photon interaction in a solid medium. The mechanism employed is resonance dispersion, where the sum frequency of an infrared beam to be rotated and a visible control beam is close to the frequency of a two-photon transition of exciton states, thereby producing different amounts of dispersion for the two orthogonal components of the linearly polarized infrared beam. The result of a phase difference between the two components is a rotation of the plane of polarization of the infrared beam.
    Type: Grant
    Filed: November 5, 1976
    Date of Patent: June 6, 1978
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Theodoor Charlouis Damen, Erich Gornik, Van-Tran Nguyen, Chandra Kumar Naranbhai Patel