Patents by Inventor François Courvoisier

François Courvoisier 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).

  • Patent number: 11059129
    Abstract: The invention, according to an aspect thereof, relates to a device (60) for laser micromachining a sample made of a given material, which includes a focusing module enabling a nondiffracting beam to be generated from a given incident beam, said nondiffracting beam being focused along a focusing cylinder that is oriented generally along the optical axis of the focusing module, means (601) for transmitting at least one first light pulse (11) suitable for generating, after said focusing module focuses in the sample, a plasma of free charges by multiphotonic absorption in a volume of the sample located on the side surface of said focusing cylinder.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: July 13, 2021
    Assignee: Centre National De La Recherche Scientifique-CNRS
    Inventors: François Courvoisier, Pierre-Ambroise Lacourt, Arnaud Couairon
  • Patent number: 10131017
    Abstract: According to one aspect, the invention relates to a device (1, 2, 3) for laser nanomachining a sample made of a material having a given transparency band, the device comprising: a focusing module (203, 703) allowing a nondiffracting beam (210, 710) to be generated, along a focusing line generally oriented along the optical axis of the focusing module, from a given incident beam; first means (202, 702) for emitting a first light pulse (I1) of spectral band comprised in the transparency band of said material, able to generate in said material, after focusing by said focusing module, a plasma of free charges along said focusing line via multi-photon absorption, thus forming a “plasma channel”; and second means (202, 702) for emitting at least one second electromagnetic wave (I2) of spectral band comprised in the transparency band of said material, which wave(s) is/are intended to be spatially superposed on said plasma channel in order to heat said material via absorption by the free charges of the plasma.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: November 20, 2018
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS, UNIVERSITE DE FRANCHE-COMTE
    Inventors: François Courvoisier, Pierre-Ambroise Lacourt, Maxime Jacquot, Luca Furfaro, John Dudley, Michel De Labachelerie
  • Publication number: 20160271727
    Abstract: The invention, according to an aspect thereof, relates to a device (60) for laser micromachining a sample made of a given material, which includes a focusing module enabling a nondiffracting beam to be generated from a given incident beam, said nondiffracting beam being focused along a focusing cylinder that is oriented generally along the optical axis of the focusing module, means (601) for transmitting at least one first light pulse (11) suitable for generating, after said focusing module focuses in the sample, a plasma of free charges by multiphotonic absorption in a volume of the sample located on the side surface of said focusing cylinder
    Type: Application
    Filed: October 16, 2014
    Publication date: September 22, 2016
    Applicant: Centre National de la Recherche Scientifique
    Inventors: François Courvoisier, Pierre-Ambroise Lacourt, Arnaud Couairon
  • Publication number: 20150158120
    Abstract: According to one aspect, the invention relates to a device (1, 2, 3) for laser nanomachining a sample made of a material having a given transparency band, the device comprising: a focusing module (203, 703) allowing a nondiffracting beam (210, 710) to be generated, along a focusing line generally oriented along the optical axis of the focusing module, from a given incident beam; first means (202, 702) for emitting a first light pulse (I1) of spectral band comprised in the transparency band of said material, able to generate in said material, after focusing by said focusing module, a plasma of free charges along said focusing line via multiphoton absorption, thus forming a “plasma channel”; and second means (202, 702) for emitting at least one second electromagnetic wave (I2) of spectral band comprised in the transparency band of said material, which wave(s) is/are intended to be spatially superposed on said plasma channel in order to heat said material via absorption by the free charges of the plasma.
    Type: Application
    Filed: April 12, 2013
    Publication date: June 11, 2015
    Applicants: Université de Franche-Comté, Centre National de la Recherche Scientifique-CNRS
    Inventors: François Courvoisier, Pierre-Ambroise Lacourt, Maxime Jacquot, Luca Furfaro, John Dudley, Michel De Labachelerie