Patents by Inventor Jean-François Daigle

Jean-François Daigle 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).

  • Method for remote sensing of targets in a transparent medium using ultra-short intense lasers
    Patent number: 7787119
    Abstract: There is described a method for identifying at least one target in a substantially transparent medium. High-power, ultra-short laser pulses are transmitted into the medium. A diameter of the laser pulses is enlarged and the laser pulses having an enlarged beam diameter are focused using a focusing element so as to generate filaments substantially near a geometrical focal zone of the focusing element, whereby a spontaneous fluorescence signal (amplified through amplified spontaneous emission or not) is detected and analyzed to identify the target.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: August 31, 2010
    Assignee: Université Laval
    Inventors: See Leang Chin, Jean-François Daigle, Weiwei Liu
  • Method for remote sensing of targets in a transparent medium using ultra-short intense lasers
    Publication number: 20080030727
    Abstract: There is described a method for identifying at least one target in a substantially transparent medium. High-power, ultra-short laser pulses are transmitted into the medium. A diameter of the laser pulses is enlarged and the laser pulses having an enlarged beam diameter are focused using a focusing element so as to generate filaments substantially near a geometrical focal zone of the focusing element, whereby a spontaneous fluorescence signal (amplified through amplified spontaneous emission or not) is detected and analyzed to identify the target.
    Type: Application
    Filed: February 26, 2007
    Publication date: February 7, 2008
    Inventors: See Chin, Jean-Francois Daigle