Patents by Inventor Henri Benisty
Henri Benisty 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).
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Publication number: 20220381692Abstract: A biochip device includes a waveguide, chromophore elements, a diffusing structure, and a sloping surface. The chromophore elements are disposed on a portion of the waveguide and are configured to emit fluorescence in response to excitation by guided light waves transmitted by the waveguide. The diffusing structure is configured to generate guided light waves in the waveguide when illuminated. The sloping surface is sloped relative to a plane of the waveguide and is configured to direct excitation light into the waveguide, and the sloping surface and the waveguide are configured to deflect the excitation light to the diffusing structure to generate guided light waves within the waveguide. The sloping surface may be a face of a prism attached to or integrated with the waveguide, or the sloping surface may be a chamfer formed at an edge of the waveguide.Type: ApplicationFiled: August 9, 2022Publication date: December 1, 2022Applicant: GENEWAVEInventors: Claude WEISBUCH, Lucio MARTINELLI, Henri BENISTY, Christof SCHAFAUER, Gabriel SAGARZAZU, Thierry GACOIN, Mélanie BEDU
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Publication number: 20220381691Abstract: A biochip device includes a stratified structure, a light coupler, and an optofluidic portion. The stratified structure includes a top layer having a refractive index n1, a bottom layer having a refractive index n3, and an intermediate layer between the top and bottom layers having a refractive index n2. The light coupler optically couples a light source and the top layer to generate waves that are guided in a plurality of directions inside the top layer. The optofluidic portion is supported on a surface of the top layer and includes a hybridizing chamber containing a hybridizing solution and pads supported on the surface of the top layer and situated within the hybridizing chamber. Probe molecules are deposited on the pads. The refractive index n2 of the intermediate layer is greater than or equal to a highest index of refraction of the hybridizing chamber and the hybridizing solution.Type: ApplicationFiled: August 9, 2022Publication date: December 1, 2022Applicant: GENEWAVEInventors: Claude WEISBUCH, Lucio MARTINELLI, Henri BENISTY, Christof SCHAFAUER, Gabriel SAGARZAZU, Thierry GACOIN, Mélanie BEDU
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Patent number: 11415514Abstract: A biochip device comprising a substrate constituted by at least one plate of material forming a multimode planar waveguide and carrying chromophore elements suitable for emitting fluorescence in response to excitation by guided waves having an evanescent portion, the device being characterized in that it includes coupling means for coupling excitation light with the waveguide in the form of guided waves, the coupling means being substantially non-directional.Type: GrantFiled: November 30, 2018Date of Patent: August 16, 2022Assignee: Genewave SASInventors: Claude Weisbuch, Lucio Martinelli, Henri Benisty, Christof Schafauer, Gabriel Sagarzazu, Thierry Gacoin, Mélanie Bedu
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Patent number: 10658816Abstract: The invention relates to a distributed feedback laser diode (10) comprising a waveguide with a gain medium assisted by a network formed by a distribution of elements (22) including a sub-set comprising localised resonators (24) distributed along the axis of the waveguide, characterised in that the frequency characteristic of the feedback induced on the wave of the guide by the spatial distribution of said elements differs by less than 50% of the resonance frequency of said localised resonators.Type: GrantFiled: July 27, 2017Date of Patent: May 19, 2020Assignees: UNIVERSITE PARIS SUD, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Anatole Lupu, Natalia Dubrovina, Abderrahim Ramdane, Henri Benisty
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Publication number: 20190257756Abstract: A biochip device comprising a substrate constituted by at least one plate of material forming a multimode planar waveguide and carrying chromophore elements suitable for emitting fluorescence in response to excitation by guided waves having an evanescent portion, the device being characterized in that it includes coupling means for coupling excitation light with the waveguide in the form of guided waves, the coupling means being substantially non-directional.Type: ApplicationFiled: April 30, 2019Publication date: August 22, 2019Inventors: Claude WEISBUCH, Lucio MARTINELLI, Henri BENISTY, Christof SCHAFAUER, Gabriel SAGARZAZU, Thierry GACOIN, Mélanie BEDU
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Publication number: 20190178799Abstract: A biochip device comprising a substrate constituted by at least one plate of material forming a multimode planar waveguide and carrying chromophore elements suitable for emitting fluorescence in response to excitation by guided waves having an evanescent portion, the device being characterized in that it includes coupling means for coupling excitation light with the waveguide in the form of guided waves, the coupling means being substantially non-directional.Type: ApplicationFiled: November 30, 2018Publication date: June 13, 2019Inventors: Claude WEISBUCH, Lucio MARTINELLI, Henri BENISTY, Christof SCHAFAUER, Gabriel SAGARZAZU, Thierry GACOIN, Mélanie BEDU
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Publication number: 20190165545Abstract: The invention relates to a distributed feedback laser diode (10) comprising a waveguide with a gain medium assisted by a network formed by a distribution of elements (22) including a sub-set comprising localised resonators (24) distributed along the axis of the waveguide, characterised in that the frequency characteristic of the feedback induced on the wave of the guide by the spatial distribution of said elements differs by less than 50% of the resonance frequency of said localised resonators.Type: ApplicationFiled: July 27, 2017Publication date: May 30, 2019Inventors: Anatole LUPU, Natalia DUBROVINA, Abderrahim RAMDANE, Henri BENISTY
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Patent number: 10184891Abstract: A biochip device comprising a substrate constituted by at least one plate of material forming a multimode planar waveguide and carrying chromophore elements suitable for emitting fluorescence in response to excitation by guided waves having an evanescent portion, the device being characterized in that it includes coupling means for coupling excitation light with the waveguide in the form of guided waves, the coupling means being substantially non-directional.Type: GrantFiled: December 28, 2011Date of Patent: January 22, 2019Assignee: GENEWAVEInventors: Claude Weisbuch, Lucio Martinelli, Henri Benisty, Christof Schafauer, Gabriel Sagarzazu, Thierry Gacoin, Mélanie Bedu
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Patent number: 9798218Abstract: A source of directional radiation in an IR band comprises at least a substrate and an external layer comprising controllable cells made of a metal insulator transition material that changes phase depending on its temperature relative to a temperature at which the corresponding wavelength is located in the IR band and that possesses a crystalline phase and an amorphous phase, and control means for controlling the phase change of the cells so as to form in this external layer a diffraction grating when the cells are controlled to the amorphous phase, in order thus to obtain a switchable directional source.Type: GrantFiled: November 27, 2013Date of Patent: October 24, 2017Assignees: Centre National De La Recherche Scientifique, Institut D'Optique Graduate School, Universite Paris SUDInventors: Philippe Ben-Abdallah, Anne-Lise Coutrot, Mondher Besbes, Henri Benisty
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Publication number: 20150293428Abstract: A source of directional radiation in an IR band comprises at least a substrate and an external layer comprising controllable cells made of a metal insulator transition material that changes phase depending on its temperature relative to a temperature at which the corresponding wavelength is located in the IR band and that possesses a crystalline phase and an amorphous phase, and control means for controlling the phase change of the cells so as to form in this external layer a diffraction grating when the cells are controlled to the amorphous phase, in order thus to obtain a switchable directional source.Type: ApplicationFiled: November 27, 2013Publication date: October 15, 2015Inventors: Philippe Ben-Abdallah, Anne-Lise Coutrot, Mondher Besbes, Henri Benisty
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Patent number: 8767207Abstract: The present disclosure relates to a system for optical detection of particles arranged in a viewing area suitable for being illuminated by radiation with a predetermined wavelength. The system includes an optical detector, and an assembly of metal plasmonic channels arranged in a single plane of which one end is close enough to the viewing area to allow optical information to be transferred from one end to the other of the channels. The channels are arranged such that the assembly forms an array for transferring optical information around the viewing area. The value of at least one spatial characteristic of the array is respectively lower and higher than the wavelength near the ends of the channels that are respectively close to and far away from the viewing area. The system includes an optical decoupler between the ends that are far away from the viewing area and the optical detector.Type: GrantFiled: February 11, 2010Date of Patent: July 1, 2014Assignee: Centre National de la Recherche Scientifique—CNRSInventor: Henri Benisty
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Publication number: 20140017128Abstract: A biochip device comprising a substrate constituted by at least one plate of material forming a multimode planar waveguide and carrying chromophore elements suitable for emitting fluorescence in response to excitation by guided waves having an evanescent portion, the device being characterized in that it includes coupling means for coupling excitation light with the waveguide in the form of guided waves, the coupling means being substantially non-directional.Type: ApplicationFiled: December 28, 2011Publication date: January 16, 2014Inventors: Claude Weisbuch, Lucio Martinelli, Henri Benisty, Thierry Gacoin, Christof Schafauer, Gabriel Sagarzazu, Mélanie Bedu
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Patent number: 8440985Abstract: An imaging method and a device for detecting the fluorescence of a biochip by illuminating chromophores associated with probes (14) of a substrate (12) placed on a sensor (10) having photodetectors, e.g. of the CCD or CMOS type, a stop filter that rejects the excitation light of the chromophores being provided between the probes (14) and the sensor, the substrate (12) being separable from the sensor (10) after use so as to enable the sensor to be reused.Type: GrantFiled: June 23, 2009Date of Patent: May 14, 2013Assignee: GenewaveInventors: Lucio Martinelli, Yann Marcy, Henri Benisty
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Publication number: 20120044485Abstract: The present disclosure relates to a system for optical detection of particles arranged in a viewing area suitable for being illuminated by radiation with a predetermined wavelength. The system includes an optical detector, as well as an assembly of metal plasmonic channels arranged in a single plane and in which one end is close enough to the viewing area to allow optical information to be transferred from one end to the other of the channels. In the system, the channels are arranged such that the assembly forms an array for transferring optical information around the viewing area. The value of at least one spatial characteristic of the array is respectively lower and higher than the wavelength near the ends of the channels that are respectively close to and far away from the viewing area. The system includes an optical decoupler between the ends that are far away from the viewing area and the optical detecter.Type: ApplicationFiled: February 11, 2010Publication date: February 23, 2012Applicant: Centre National De La Recherche Scientifique- CNRSInventor: Henri Benisty
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Publication number: 20110266460Abstract: An imaging method and a device for detecting the fluorescence of a biochip by illuminating chromophores associated with probes (14) of a substrate (12) placed on a sensor (10) having photodetectors, e.g. of the CCD or CMOS type, a stop filter that rejects the excitation light of the chromophores being provided between the probes (14) and the sensor, the substrate (12) being separable from the sensor (10) after use so as to enable the sensor to be reused.Type: ApplicationFiled: June 23, 2009Publication date: November 3, 2011Inventors: Lucio Martinelli, Yann Marcy, Henri Benisty
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Publication number: 20090111207Abstract: A method of fabricating an integrated detection biosensor, the biosensor comprising an assembly (10) of photodetectors (12) of CCD or CMOS type on which there is deposited or formed a filter for rejecting excitation light ?e, the filter comprising at least one absorbent layer (14) together with a Bragg mirror or an interference filter, forming a support for chromophore elements that are to be illuminated by the excitation light ?e.Type: ApplicationFiled: October 17, 2006Publication date: April 30, 2009Inventors: Houtai Choumane, Claude Weisbuch, Henri Benisty, Khoi-Nguyen Ha
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Patent number: 7306766Abstract: An improved biochip type device comprising a substrate (10) including an intermediate non-absorbent multilayer mirror (12) covered by a layer (14) of high refractive index material having chromophore elements (16) fixed thereon, the layer (14) further including feature (24) for extracting guided-mode light in order to recover the light emitted by the chromophore elements (16) into the layer (14) in response to light excitation, and direct the light to detection and measurement means.Type: GrantFiled: May 20, 2004Date of Patent: December 11, 2007Assignees: Centre National de la Recherche Scientifique, Ecole Polytechnique, Universite de Versailles Saint-Quentin en YvelinesInventors: Claude Weisbuch, Henri Benisty
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Patent number: 7295744Abstract: A frequency-selective light coupler-decoupler device comprising a component of photonic crystal structure in which there is formed a waveguide having at least one longitudinal edge with a small number of rows of periodic elements of the photonic crystal so as to form coupling zones between the waveguide and the outside of the photonic crystal at coupling frequencies that are determined in particular by the width of the waveguide and/or by the spatial period of the photonic crystal elements.Type: GrantFiled: April 25, 2006Date of Patent: November 13, 2007Assignee: Centre National de la RechercheInventors: Henri Benisty, Emilie Schwoob
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Patent number: 7223998Abstract: A white, single or multi-color light emitting diode (LED) includes a mirror for reflecting photons within the LED; a first active region, adjacent the mirror, including one or more current-injected layers for emitting photons when electrically biased in a forward direction; a second active region, adjacent the first active region, including one or more optically-pumped layers for emitting photons, wherein the optically-pumped layers are optically excited by the photons emitted by the current-injected layers, thereby recycling guided modes; and an output interface, adjacent the second active region, for allowing the photons emitted by the optically-pumped layers to escape the LED as emitted light.Type: GrantFiled: September 10, 2004Date of Patent: May 29, 2007Assignee: The Regents of the University of CaliforniaInventors: Carole Schwach, Claude Charles Aime Weisbuch, Steven P. DenBaars, Henri Benisty, Shuji Nakamura
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Publication number: 20070098345Abstract: A frequency-selective light coupler-decoupler device comprising a component of photonic crystal structure in which there is formed a waveguide having at least one longitudinal edge with a small number of rows of periodic elements of the photonic crystal so as to form coupling zones between the waveguide and the outside of the photonic crystal at coupling frequencies that are determined in particular by the width of the waveguide and/or by the spatial period of the photonic crystal elements.Type: ApplicationFiled: April 25, 2006Publication date: May 3, 2007Inventors: Henri Benisty, Emilie Schwoob