Patents by Inventor Julien Fuchs

Julien Fuchs 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: 9603234
    Abstract: A device for magnetizing laser plasma by unit of a pulsed magnetic field, which includes: a laser source for emitting a laser pulse; a vacuum chamber in which a target capable of generating a laser plasma during an interaction of the laser pulse with the target is arranged; and a coil capable of generating a pulsed magnetic field in the laser plasma, the device being characterised in that the coil is arranged in a reentrant chamber containing a coolant.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: March 21, 2017
    Assignee: ECOLE POLYTECHNIQUE
    Inventors: Julien Fuchs, Bruno Albertaz, Henri Pepin, Olivier Portugall, Jerôme Beard
  • Patent number: 9514908
    Abstract: The invention relates to a method for generating a focused charged-particle beam, comprising at least the steps of: a) generating a charged-particle beam (10); b) emitting a laser pulse (40); c) generating a focusing magnetic field structure in a target (50) by means of an interaction between the laser pulse and the target; and d) making the charged-particle beam penetrate the focusing magnetic field structure at least partially.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: December 6, 2016
    Assignees: ECOLE POLYTECHNIQUE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.), INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE (INRS)
    Inventors: Julien Fuchs, Bruno Albertazzi, Henri Pepin, Emmanuel D'Humieres
  • Publication number: 20160014875
    Abstract: A device for magnetizing laser plasma by unit of a pulsed magnetic field, which includes: a laser source for emitting a laser pulse; a vacuum chamber in which a target capable of generating a laser plasma during an interaction of the laser pulse with the target is arranged; and a coil capable of generating a pulsed magnetic field in the laser plasma, the device being characterised in that the coil is arranged in a reentrant chamber containing a coolant.
    Type: Application
    Filed: February 26, 2014
    Publication date: January 14, 2016
    Inventors: Julien FUCHS, Bruno ALBERTAZ, Henri PEPIN, Olivier PORTUGALL, Jerôme BEARD
  • Publication number: 20150303019
    Abstract: The invention relates to a method for generating a focused charged-particle beam, comprising at least the steps of: a) generating a charged-particle beam (10); b) emitting a laser pulse (40); c) generating a focusing magnetic field structure in a target (50) by means of an interaction between the laser pulse and the target; and d) making the charged-particle beam penetrate the focusing magnetic field structure at least partially.
    Type: Application
    Filed: October 22, 2013
    Publication date: October 22, 2015
    Inventors: Julien FUCHS, Bruno ALBERTAZZI, Henri PEPIN, Emmanuel D'HUMIERES
  • Publication number: 20120298624
    Abstract: In particular embodiments, the present disclosure provides targets including a metal layer and defining a hollow inner surface. The hollow inner surface has an internal apex. The distance between at least two opposing points of the internal apex is less than about 15 ?m. In particular examples, the distance is less than about 1 ?m. Particular implementations of the targets are free standing. The targets have a number of disclosed shaped, including cones, pyramids, hemispheres, and capped structures. The present disclosure also provides arrays of such targets. Also provided are methods of forming targets, such as the disclosed targets, using lithographic techniques, such as photolithographic techniques. In particular examples, a target mold is formed from a silicon wafer and then one or more sides of the mold are coated with a target material, such as one or more metals.
    Type: Application
    Filed: March 12, 2012
    Publication date: November 29, 2012
    Inventors: Thomas Cowan, Steven Malekos, Grant Korgan, Jesse Adams, Yasuhiko Sentoku, Nathalie Le Galloudec, Julien Fuchs
  • Patent number: 8229075
    Abstract: In particular embodiments, the present disclosure provides targets including a metal layer and defining a hollow inner surface. The hollow inner surface has an internal apex. The distance between at least two opposing points of the internal apex is less than about 15 ?m. In particular examples, the distance is less than about 1 ?m. Particular implementations of the targets are free standing. The targets have a number of disclosed shaped, including cones, pyramids, hemispheres, and capped structures. The present disclosure also provides arrays of such targets. Also provided are methods of forming targets, such as the disclosed targets, using lithographic techniques, such as photolithographic techniques. In particular examples, a target mold is formed from a silicon wafer and then one or more sides of the mold are coated with a target material, such as one or more metals.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: July 24, 2012
    Assignee: Board of Regents of the Nevada System of Higher Education, on Behalf of the University of Nevada, Reno
    Inventors: Thomas Cowan, Steven Malekos, Grant Korgan, Jesse Adams, Yasuhiko Sentoku, Nathalie Le Galloudec, Julien Fuchs
  • Publication number: 20100028707
    Abstract: In particular embodiments, the present disclosure provides targets including a metal layer and defining a hollow inner surface. The hollow inner surface has an internal apex. The distance between at least two opposing points of the internal apex is less than about 15 ?m. In particular examples, the distance is less than about lam. Particular implementations of the targets are free standing. The targets have a number of disclosed shaped, including cones, pyramids, hemispheres, and capped structures. The present disclosure also provides arrays of such targets. Also provided are methods of forming targets, such as the disclosed targets, using lithographic techniques, such as photolithographic techniques. In particular examples, a target mold is formed from a silicon wafer and then one or more sides of the mold are coated with a target material, such as one or more metals.
    Type: Application
    Filed: September 12, 2006
    Publication date: February 4, 2010
    Inventors: Thomas E. Cowan, Steven Malekos, Grant Korgan, Jesse Adams, Yasuhiko Sentoku, Nathalie Le Galloudec, Julien Fuchs
  • Patent number: 7642521
    Abstract: The present invention concerns a system for the focusing and/or a collimation of an ion beam, in particular a beam of accelerated protons, wherein the system has a lens with a lens body that is permeable to the ion beam, wherein means for the generation of an in particular electrostatic field, propagating within the lens body and focusing the ion beam, are provided, wherein the lens body has a wall of low thickness, wherein the means for the field generation comprise a source of electromagnetic radiation, whose emitted beam is directed onto the outer side of the wall of the lens body, wherein the thickness of the wall and the quality of the electromagnetic radiation is chosen such that the radiation generates free electrons that emerge from the wall and accumulate on the exit side of the wall in an electron cloud.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: January 5, 2010
    Assignees: Heinrich-Heine Universitaet Duesseldorf, Université Pierre and Marie Curie (UPMC), The Queen's University of Belfast, The Centre National de la Recherche Scientifique, Ecole Polytechnique
    Inventors: Oswald Willi, Julien Fuchs, Marco Borghesi, Toma Toncian
  • Publication number: 20080191143
    Abstract: The present invention concerns a system for the focusing and/or a collimation of an ion beam, in particular a beam of accelerated protons, wherein the system has a lens with a lens body that is permeable to the ion beam, wherein means for the generation of an in particular electrostatic field, propagating within the lens body and focusing the ion beam, are provided, wherein the lens body has a wall of low thickness, wherein the means for the field generation comprise a source of electromagnetic radiation, whose emitted beam is directed onto the outer side of the wall of the lens body, wherein the thickness of the wall and the quality of the electromagnetic radiation is chosen such that the radiation generates free electrons that emerge from the wall and accumulate on the exit side of the wall in an electron cloud.
    Type: Application
    Filed: March 10, 2006
    Publication date: August 14, 2008
    Inventors: Oswald Willi, Julien Fuchs, Marco Borghesi, Toma Toncian