Patents by Inventor Quentin Levesque

Quentin Levesque 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).

  • Device for controlling the phase of an optical wavefront having juxtaposed metal-multidielectric-metal structures to induce a local shift
    Patent number: 9588339
    Abstract: According to one aspect, the invention relates to a device (20, 50) for controlling the phase of an incident optical wavefront of wavelength comprised in a spectral band of given use, comprising a substrate (21) that is at least partially transparent in said spectral band and a set of strips (22i, 23i, 24i) arranged substantially perpendicularly to the surface of the substrate, characterized in that: said set of strips comprises an alternation of juxtaposed strips respectively made of a metal (22i), of a first dielectric (23i) and of at least one second dielectric (24i) different from the first dielectric, such as to form juxtaposed metal/multi dielectric/metal (MmultiDM) structures (Si) of subwavelength widths (wi), each structure forming a cavity having one or more propagation modes—the respective thicknesses of the strips made of the first dielectric and of the second dielectric(s) are adjusted in each of said MmultiDM structures to induce a local shift (??i) in the phase of the wavefront, the local phase
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: March 7, 2017
    Assignees: Office National d'Etudes et de Recherches Aérospatiales—ONERA, Centre Nationale de la Recherche Scientifique—CNRS
    Inventors: Quentin Levesque, Patrick Bouchon, Riad Haidar, Fabrice Pardo
  • DEVICE FOR CONTROLLING THE PHASE OF AN OPTICAL WAVEFRONT
    Publication number: 20150301333
    Abstract: According to one aspect, the invention relates to a device (20, 50) for controlling the phase of an incident optical wavefront of wavelength comprised in a spectral band of given use, comprising a substrate (21) that is at least partially transparent in said spectral band and a set of strips (22i, 23i, 24i) arranged substantially perpendicularly to the surface of the substrate, characterised in that: said set of strips comprises an alternation of juxtaposed strips respectively made of a metal (22i), of a first dielectric (23i) and of at least one second dielectric (24i) different from the first dielectric, such as to form juxtaposed metal/multi dielectric/metal (MmultiDM) structures (Si) of subwavelength widths (wi), each structure forming a cavity having one or more propagation modes—the respective thicknesses of the strips made of the first dielectric and of the second dielectric(s) are adjusted in each of said MmultiDM structures to induce a local shift (??i) in the phase of the wavefront, the local phase
    Type: Application
    Filed: November 29, 2013
    Publication date: October 22, 2015
    Applicant: Office National d'Etudes et de Recherches Aérospatiales-ONERA
    Inventors: Quentin Levesque, Patrick Bouchon, Riad Haidar, Fabrice Pardo