Patents by Inventor Salim Boutami

Salim Boutami 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).

  • Publication number: 20220146402
    Abstract: A particle detector includes at least one resonant cavity partially formed at least by a first reflector, a second reflector disposed at a distance from the first reflector and a channel located between the first and second reflectors, the channel being intended to receive at least one fluid comprising particles and to receive at least one light radiation; and at least one detection system having at least one photodetector. The particle detector is configured so that a portion of the light radiation present in the channel escapes from the cavity throughout the second reflector and reaches the detection system, thereby enabling the at least one photodetector to detect leakage of the cavity. The second reflector is a photonic crystal membranes PCM based reflector.
    Type: Application
    Filed: December 23, 2019
    Publication date: May 12, 2022
    Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, CPE LYON, ECOLE CENTRALE DE LYON, INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE LYON, UNIVERSITE CLAUDE BERNARD LYON 1
    Inventors: Gabriel JOBERT, Salim BOUTAMI, Maryse FOURNIER, Christian SEASSAL
  • Publication number: 20220091018
    Abstract: An optical particle detector including at least one channel intended to receive a fluid carrying at least one particle, and across which light rays are intended to pass such that the light rays are partially scattered by the at least one particle, a plurality of photodetectors capable of receiving said scattered light rays, wherein the detector includes at least one optical waveguide configured to collect, at least at one entrance of the waveguide, light rays that were not scattered by the at least one particle and having crossed the channel, and to reinject the unscattered light rays into the channel through at least one exit of the waveguide.
    Type: Application
    Filed: September 21, 2021
    Publication date: March 24, 2022
    Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, CPE LYON FORMATION CONTINUE ET RECHERCHE, ECOLE CENTRALE DE LYON, INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE LYON, UNIVERSITE CLAUDE BERNARD LYON 1
    Inventors: Salim BOUTAMI, Maryse FOURNIER, Gabriel JOBERT, Christian SEASSAL, Cécile JAMOIS
  • Publication number: 20220011516
    Abstract: A wavelength demultiplexing device configured so as to spatially distributing the spectral contributions of an incident light beam, when in use, and which includes a linear waveguide and a planar waveguide, formed in a coplanar way and adapted to be optically coupled with one another along a coupling line, by evanescent coupling. Such a device may further include diffraction gratings located in the planar waveguide, to extract light out of the latter.
    Type: Application
    Filed: July 6, 2021
    Publication date: January 13, 2022
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Cyrielle MONPEURT, Salim BOUTAMI
  • Publication number: 20210404931
    Abstract: An optical particle sensor includes-at least one light source configured to emit light rays; at least one channel intended to receive a fluid transporting at least one particle, and to at least partially receive the light rays emitted by the at least one source such that said light rays are partially scattered by the at least one particle; and at least one photodetector capable of receiving said scattered light rays. The at least one source has an emission face facing one side of the sensor and the at least one photodetector has a receiving face facing the same side of the sensor, wherein the light rays received by the at least one photodetector are light rays backscattered by the at least one particle, for at least 90% of the light rays.
    Type: Application
    Filed: June 30, 2021
    Publication date: December 30, 2021
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Tony MAINDRON, Salim BOUTAMI, Christophe KOPP
  • Patent number: 11209352
    Abstract: A device for detecting gases or particles includes a light source capable of emitting a light beam, an interaction cavity including first and second reflective walls substantially parallel with each other, a plurality of monomode optical waveguides each having a first end of width l1 optically coupled to the light source and a second end of width l2, greater than the width l1, optically coupled to a first end of the interaction cavity, each optical waveguide including in its second end of width l2 a diffraction grating having a pitch P in particular chosen as a function of a concentration C and a parameter ? of interaction with the light beam of a type of gas or particle to detect; and a detector coupled to a second end of the interaction cavity.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: December 28, 2021
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Salim Boutami
  • Patent number: 11204308
    Abstract: The present invention relates to a particle detector comprising at least an optical device configured to emit a luminous radiation; and a substrate extending in a plane and defining a channel intended to receive particles, the channel extending principally in a direction perpendicular to the principal plane; characterised in that the detector comprises a matrix of photo detectors and a reflecting surface; the matrix of photo detectors and the reflecting surface being disposed on mutually parallel planes and situated on either side of said portion of the substrate so that a part of the luminous radiation passes through the channel by being diffracted by a particle, then reflects off the reflecting surface, and then reaches the matrix of photo detectors.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: December 21, 2021
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Salim Boutami, Sergio Nicoletti
  • Patent number: 11133437
    Abstract: An optoelectronic device including an active area capable of supplying an electromagnetic radiation and sandwiched between first and second semiconductor layers, the first semiconductor layer delimiting a surface and including a first portion in contact with the active area and delimiting a first part of the surface and extending in a second portion delimiting a second part of the surface, the second portion forming a single-mode waveguide, the optoelectronic device including an opaque portion reflective for the electromagnetic radiation covering the first part and including a diffraction grating on the second part capable of extracting the electromagnetic radiation from the second portion.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: September 28, 2021
    Assignee: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventors: François Templier, Salim Boutami
  • Patent number: 11127884
    Abstract: An optoelectronic device including an active area capable of supplying an electromagnetic radiation and sandwiched between first and second semiconductor layers, the first semiconductor layer delimiting a surface, the optoelectronic device further including a diffraction grating capable of extracting the electromagnetic radiation from the first semiconductor layer, the diffraction grating including holes extending in the first semiconductor layer from said surface, the width of the holes measured in a plane parallel to said surface increasing from a central portion of the diffraction grating to a peripheral portion of the diffraction grating.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: September 21, 2021
    Assignee: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventors: François Templier, Salim Boutami
  • Patent number: 11092547
    Abstract: A method for observing a fluorescent sample, the sample comprising a fluorescent agent that emits fluorescence light, in a fluorescence spectral band, when it is illuminated by excitation light, in an excitation spectral band, the method comprising the following steps: a) placing the sample on a holder; b) illuminating the sample, with an excitation light source, in the excitation spectral band, the light emitted by the light source propagating along a propagation axis; c) detecting fluorescence light, in the fluorescence spectral band, with an image sensor; the method being such that the holder comprises a thin layer formed from a first material, of a first refractive index, the thin layer lying in a holder plane perpendicular to the propagation axis, the thin layer comprising a first photonic crystal and second photonic crystals configured to confine the excitation light and the fluorescence light in the thin layer.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: August 17, 2021
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Selimen Benahmed, Cedric Allier, Salim Boutami
  • Patent number: 11048046
    Abstract: The invention relates to an optical coupler (10) in a vertical configuration, capable of working for a wavelength and comprising a first waveguide (12) and a second waveguide (14). The second waveguide (14) has a patterning (33) in the form of a series of patterns (36), the patterns (36) extending along a transverse direction (X) perpendicular to the longitudinal direction (Z), being parallel to each other and orthogonal to the general direction of the first waveguide (12), each pattern (36) being arranged both in the core (30) and the cladding (32) of the second waveguide (14) and having parameters influencing the evanescent wave coupling between the first waveguide (12) and the second waveguide (14), said parameters being chosen such that the coupling (C) is greater than 15%.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: June 29, 2021
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Salim Boutami, Mickaël Brun, Pierre Labeye, Sergio Nicoletti, Grégory Maisons
  • Patent number: 11048044
    Abstract: A device of collimation of a light beam including a monomode waveguide, a first element of collimation of the light beam parallel to a first plane and a second element of collimation of the light beam parallel to a second plane, the first collimation element coupling the waveguide to the second collimation element.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: June 29, 2021
    Assignee: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventor: Salim Boutami
  • Publication number: 20210181089
    Abstract: A device for the photoacoustic characterisation of a gaseous substance, includes a chamber intended to contain the gaseous substance to characterise and into which a light beam is injected. The chamber is delimited, inter alia, by an inner face, on which a part of the light beam is reflected. This inner face is etched so as to have recesses, each recess being delimited laterally by a lateral surface of which a part at least is tilted, with respect to an average plane of the inner face, by a given tilt angle (?).
    Type: Application
    Filed: December 3, 2020
    Publication date: June 17, 2021
    Inventors: Salim BOUTAMI, Maryse FOURNIER
  • Publication number: 20210149091
    Abstract: The invention relates to a diffuser 3 intended to be facing a light source 1 comprising a transmission layer 10 and a diffusion layer 22, 23 intended to diffuse a light transmitted by the light source, the diffuser being characterised in that the diffusion layer comprises a plurality of metal structures 200, 200a, 200b, called metal nanostructures, having dimensions less than a wavelength of the light transmitted, said metal nanostructures having varied sizes and being distributed within the diffusion layer such that adjacent metal nanostructures have between them, varied distances and preferably less than the wavelength of the light transmitted. The invention also relates to a method for manufacturing such a diffuser, and a display system comprising such a diffuser.
    Type: Application
    Filed: September 25, 2020
    Publication date: May 20, 2021
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Salim BOUTAMI, Bernard AVENTURIER, Stéphane GETIN, Aurélien SUHM, Pierre JOLY
  • Patent number: 11002664
    Abstract: An optical device for a biological or chemical sensor includes: an absorption cavity configured to receive a biological or chemical medium; an injection waveguide to inject an analysis light beam into the absorption cavity; and an extraction waveguide to extract a measurement light beam, corresponding to the analysis light beam after transit through the absorption cavity. The absorption cavity has a shape of a right cylinder with an elliptical base. One end of the injection waveguide is placed at a first focus of the ellipse and one and of the extraction waveguide is placed at a second focus of the ellipse. A core of the injection waveguide and a core of the extraction waveguide each have a tip-shaped end, with a constant height in a plane parallel to the generatrix of the right cylinder and a tip-shaped cross section in planes parallel to the base of the right cylinder.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: May 11, 2021
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Salim Boutami, Mathieu Dupoy, Boris Taurel
  • Publication number: 20210124097
    Abstract: The invention relates to a diffuser 3 intended to receive the light transmitted by a visible light source 1 comprising a transmission layer 10 and a diffusion layer 22 intended to diffuse said light, the diffuser being characterised in that the diffusion layer comprises a plurality of metal nanostructures 200, each of these metal nanostructures having, in projection in a main extension plane xy, a longitudinal dimension L along a longitudinal axis and a transverse dimension l along a transverse axis, said longitudinal and transverse dimensions being different to one another and the transverse dimension l being less than 650 nm, and in that these metal nanostructures are further distributed within the diffusion layer such that at least two adjacent metal nanostructures are respectively oriented along two non-parallel longitudinal axes. The invention also relates to a method for manufacturing such a diffuser, and a display system comprising such a diffuser.
    Type: Application
    Filed: September 25, 2020
    Publication date: April 29, 2021
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Salim BOUTAMI, François TEMPLIER, Bernard AVENTURIER
  • Patent number: 10950739
    Abstract: A photodiode which includes a core of a first waveguide that terminates in a tapered termination that extends above a core, made of germanium or of SiGe, of a second waveguide, a matching strip that extends opposite the tapered termination on one side and opposite the core of the second waveguide on the opposite side, this matching strip being coupled optically to the core of the second waveguide by an evanescent coupling and including a first zone inside which its effective propagation index is equal to the effective propagation index of a second zone of the tapered termination, these first and second zones optically coupling the tapered termination to the matching strip through a modal coupling, and a low-index layer that extends between the matching strip and the tapered termination.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: March 16, 2021
    Assignee: Commissariat a l'energie atomique et aux energies alternatives
    Inventors: Karim Hassan, Salim Boutami, Christophe Kopp
  • Patent number: 10937643
    Abstract: The invention relates to an infrared device comprising a resistive element suspended in a cavity formed in a main element, and capable of transmitting infrared radiation when it is fed with an electric current. In particular, the main element is at least partly covered on the outer surface thereof and/or the inner surface thereof with a reflective coating. The use of the reflective coating makes it possible to at least partly contain infrared radiation transmitted by the resistive element in the cavity.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: March 2, 2021
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Salim Boutami, Emerick Lorent
  • Patent number: 10884225
    Abstract: An optical cavity includes: a first elliptical mirror, having a first focal axis A1, and designed to reflect a light beam emitted by a light source; a second elliptical mirror, having a second focal axis A2; a third elliptical mirror, having a third focal axis A3, the light beam exiting from the third elliptical mirror being designed to be received by a detector; a first reflector, arranged to reflect the light beam exiting from first elliptical mirror in the direction of the second elliptical mirror, and arranged to reflect the light beam exiting from second elliptical mirror in the direction of the third elliptical mirror; the first, second and third elliptical mirrors being arranged so that A1, A2 and A3 have a point of intersection F, corresponding to a focus common to the first, second and third elliptical mirrors.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: January 5, 2021
    Assignees: COMMISSARIAT À L'ENERGIE ATOMIQUE, ET AUX ENERGIES ALTERNATIVES
    Inventor: Salim Boutami
  • Publication number: 20200393375
    Abstract: A method for observing a fluorescent sample, the sample comprising a fluorescent agent that emits fluorescence light, in a fluorescence spectral band, when it is illuminated by excitation light, in an excitation spectral band, the method comprising the following steps: a) placing the sample on a holder; b) illuminating the sample, with an excitation light source, in the excitation spectral band, the light emitted by the light source propagating along a propagation axis; c) detecting fluorescence light, in the fluorescence spectral band, with an image sensor; the method being such that the holder comprises a thin layer formed from a first material, of a first refractive index, the thin layer lying in a holder plane perpendicular to the propagation axis, the thin layer comprising a first photonic crystal and second photonic crystals configured to confine the excitation light and the fluorescence light in the thin layer.
    Type: Application
    Filed: June 12, 2020
    Publication date: December 17, 2020
    Applicant: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Selimen BENAHMED, Cedric ALLIER, Salim BOUTAMI
  • Patent number: 10845296
    Abstract: A particle detector is provided, including at least one channel configured to receive at least one fluid including particles; one optical inlet configured to receive at least one incident luminous radiation; one first plurality of reflecting surfaces arranged between the optical inlet and the channel; one matrix of photo detectors arranged facing the channel; and one second plurality of reflecting surfaces arranged between the channel and the matrix of photo detectors such that the channel is disposed between the first and the second pluralities of reflecting surfaces.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: November 24, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Salim Boutami, Mathieu Dupoy, Jean-Marc Fedeli