Patents by Inventor Ounsi El Daif

Ounsi El Daif 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).

  • Near infrared twin photon source
    Patent number: 7729043
    Abstract: Optical parametric oscillator including a semiconductor microcavity being configured to spatially localize polaritons of at least three quantized polariton energy levels to effect an optical parametric oscillation.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: June 1, 2010
    Assignee: École Polytechnique Fédérale de Lausanne
    Inventors: Ounsi El Daif, Augustin Baas, Benoît Deveaud-Plédran, François Morier-Genoud