Patents by Inventor Ismaël Charlet

Ismaël Charlet 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).

  • PHASE-CHANGE MATERIAL SWITCH
    Publication number: 20260177879
    Abstract: A phase-change material switch, including: a region in said phase-change material connecting first and second conduction electrodes of the switch; and a grating coupler for coupling a laser signal for activating the switch, located opposite a face of the region in said phase-change material.
    Type: Application
    Filed: December 17, 2025
    Publication date: June 25, 2026
    Applicants: Commissariat à I'Énergie Atomique etaux Énergies Alternatives, Institut Polytechnique de Grenoble, Universite Grenoble alpes, Centre National de la Recherche Scientifique
    Inventors: Ayoub Naoui, Bruno Reig, Etienne Perret, Florence Podevin, Ismaël Charlet, Sylvain Guerber
  • PHASE CHANGE MATERIAL SWITCH
    Publication number: 20260033251
    Abstract: A switch based on a phase-change material including: a region of said phase-change material coupling first and second conduction electrodes of the switch; a waveguide located vertically in line with the region of said phase-change material and including a central region of a first material having a first refractive index surrounded by a peripheral region of a second material having a second refractive index lower than the first refractive index; and a region of a third material having a third refractive index lower than the second refractive index and located in the peripheral region of the waveguide vertically in line with a first face of the central region of the waveguide opposite the region of said phase-change material.
    Type: Application
    Filed: July 23, 2025
    Publication date: January 29, 2026
    Applicants: Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Universite Grenoble Alpes, Institut Polytechnique de Grenoble
    Inventors: Ayoub Naoui, Ismaël Charlet
  • PHASE-CHANGE MATERIAL SWITCH
    Publication number: 20250046551
    Abstract: The present disclosure relates to phase-change-based material switch formed on a support substrate, and including: a region made of said phase-change material coupling first and second conduction electrodes of the switch; and a waveguide interposed between the support substrate and the region made of said phase-change material, and including a center region made of a first material having a first optical index surrounded by a peripheral region made of a second material having a second optical index less than the first optical index.
    Type: Application
    Filed: July 29, 2024
    Publication date: February 6, 2025
    Applicants: Commissariat à I'Énergie Atomique et aux Énergies Alternatives, Institut Polytechnique de Grenoble, Université Grenoble Alpes
    Inventors: Bruno Reig, Clémence Hellion, Ismaël Charlet, Marjolaine Allain, Ayoub Naoui
  • SWITCH BASED ON A PHASE-CHANGE MATERIAL
    Publication number: 20240431218
    Abstract: A switch based on a phase-change material including: a region made of said phase-change material coupling first and second conduction electrodes of the switch; and an optical coupler of a laser signal for activating the switch, located in front of a surface of the region made of said phase-change material.
    Type: Application
    Filed: June 11, 2024
    Publication date: December 26, 2024
    Applicant: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventor: Ismaël Charlet
  • SWITCH BASED ON A PHASE-CHANGE MATERIAL
    Publication number: 20240429007
    Abstract: A switch based on a phase-change material including: a region made of said phase-change material coupling first and second conduction electrodes of the switch; and a rotator of the polarization of a laser signal for activating the switch, located in front of a surface of the region made of said phase-change material.
    Type: Application
    Filed: June 11, 2024
    Publication date: December 26, 2024
    Applicant: Commissariat à I'Énergie Atomique et aux Énergies Alternatives
    Inventor: Ismaël Charlet