Patents by Inventor Sylvain Gigan
Sylvain Gigan 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: 20220390369Abstract: Systems and methods are provided for imaging and characterizing objects including the eye using non-uniform or speckle illumination patterns. According to the present technology, a method for characterizing at least a portion of an object may include generating, using at least one light source, one or multiple non-uniform illumination patterns on an object. The method may also include detecting, using a detector, backscattered light from the object in response to the generating. The method may further include extracting, using the detector, data representative of the backscattered light. The method may also include processing, using a processing unit, the data representative of the backscattered light to create one or more images of at least a portion of the object.Type: ApplicationFiled: September 30, 2020Publication date: December 8, 2022Inventors: Rafael Piestun, Kristina Irsch, Simon Labouesse, Sylvain Gigan
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Publication number: 20210325653Abstract: Device for phase microscopy comprising: a spatial light modulator, a connecting means adapted to fix the spatial light modulator onto a phase microscope, said phase microscope comprising a light path comprising at least a sample area, a lighting device for lighting said sample area and an imaging device for capturing a phase image of said sample, said phase image being a 2D matrix of pixels, so that the spatial light modulator is positioned in the light path in a conjugated plane of the sample area and a command of the spatial light modulator connected to the imaging device and adapted to measure the phase shift of a plurality of pixels of the phase image and to command the spatial light modulator in order to subtract the measured phase shifts.Type: ApplicationFiled: September 4, 2019Publication date: October 21, 2021Inventors: Sylvain GIGAN, Thomas JUFFMANN, Andrés DE LOS RÍOS SOMMER
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Patent number: 10935819Abstract: An integrated sensor and optical phase/amplitude modulator device including a modulator stacked on or above a detector. A circuit receives a signal outputted from the detector in response to an input field irradiating the detector. The circuit performs binary operations comprising classifying the input phase of the input electromagnetic radiation into one of two ranges and setting the modulator into one of two states depending on which range the input phase is classified into. The modulator transmits output electromagnetic radiation having an output field modulated according to the state of the modulator set by the circuit.Type: GrantFiled: June 22, 2018Date of Patent: March 2, 2021Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGYInventors: Changhuei Yang, Sylvain Gigan
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Patent number: 10684113Abstract: An optical detection device includes a light source emitting a light beam whose electromagnetic field, a means adapted to divide the beam into a first beam defining a first reference pathway and a second beam defining a second sample pathway, a modulation system frequency-shifting the electromagnetic fields of the two beams, a beam coupler adapted to collect the beams, an optical detection system adapted to detect the signal arising from the interference between the beams and coupled via the coupler, the sample being placed in the sample pathway, the optical detection system comprising an optical detector and a device adapted to measure the amplitude and the phase of the signal, an opaque screen comprising an optical aperture is placed at the level of a zone of a sample, in proximity to the sample, in the sample pathway.Type: GrantFiled: January 6, 2017Date of Patent: June 16, 2020Assignee: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Yannick De Wilde, Lèo Greusard, Gilles Tessier, Sylvain Gigan, Samuel Gresillon, Kamel Bencheikh
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Patent number: 10313018Abstract: The invention is related to a digital-data mixing apparatus (2), a data processing system (1) and an associated method for mixing digital-data. The digital-data mixing apparatus comprises, integrated in a housing (7), input means (8) for receiving a plurality of bits (I1 . . . In) of input digital data (4), electromagnetic emission means (9) for generating a modulated electromagnetic beam (15) wherein said input digital data (4) are converted in simultaneous modulations of the modulated electromagnetic beam (15), electromagnetic scattering means (10) for scattering the modulated electromagnetic beam (15) in a scattered electromagnetic beam (19), receiving means (11) for converting the scattered electromagnetic beam (19) in bits (O1 . . . Om) of output digital data (5), and output means (12) for providing said output digital data (5).Type: GrantFiled: February 4, 2016Date of Patent: June 4, 2019Assignees: PARIS SCIENCES ET LETTRES—QUARTIER LATIN, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), ECOLE SUPERIEURE DE PHYSIQUE ET DE CHIMIE INDUSTRIELLES DE LA VILLE DE PARIS, UNIVERSITÉ PARIS DIDEROT—PARIS 7Inventors: Sylvain Gigan, Florent Krzakala, Laurent Daudet, Igor Carron, Angélique Dremeau, Alaa Saade
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Publication number: 20190041185Abstract: An optical detection device includes a light source emitting a light beam whose electromagnetic field, a means adapted to divide the beam into a first beam defining a first reference pathway and a second beam defining a second sample pathway, a modulation system frequency-shifting the electromagnetic fields of the two beams, a beam coupler adapted to collect the beams, an optical detection system adapted to detect the signal arising from the interference between the beams and coupled via the coupler, the sample being placed in the sample pathway, the optical detection system comprising an optical detector and a device adapted to measure the amplitude and the phase of the signal, an opaque screen comprising an optical aperture is placed at the level of a zone of a sample, in proximity to the sample, in the sample pathway.Type: ApplicationFiled: January 6, 2017Publication date: February 7, 2019Inventors: Yannick DE WILDE, Léo GREUSARD, Gilles TESSIER, Sylvain GIGAN, Samuel GRESILLON, Kamel BENCHEIKH
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Publication number: 20190028641Abstract: According to one aspect, the present description relates to a system for high resolution imaging of an object comprising a fiber bundle (1) comprising an array of optical fiber cores (A), said fiber bundle being adapted to receive a plurality of light beams issued from spatially incoherent point sources of an object; the system further comprises a two-dimensional detector (240) with a detection plane, located at a proximal end of the fiber bundle, adapted to receive speckle patterns, each speckle pattern resulting from the transmission of one of said light beams through at least a plurality of the fiber bundle cores, the ensemble of speckle patterns detected by the two-dimensional detector forming a multiple speckles image; and a processing unit (250) adapted to determine an image of the object from said multiple speckles image.Type: ApplicationFiled: December 17, 2015Publication date: January 24, 2019Applicants: Université d'Aix-Marseille, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNR S, Ecole Centrale de Marseille (ECM), Weizmann Institute of Science (WIS)Inventors: Hervé Rigneault, Esben Andresen, Amir Porat, Dan Oron, Ori Katz, Sylvain Gigan
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Publication number: 20180373065Abstract: An integrated sensor and optical phase/amplitude modulator device including a modulator stacked on or above a detector. A circuit receives a signal outputted from the detector in response to an input field irradiating the detector. The circuit performs binary operations comprising classifying the input phase of the input electromagnetic radiation into one of two ranges and setting the modulator into one of two states depending on which range the input phase is classified into. The modulator transmits output electromagnetic radiation having an output field modulated according to the state of the modulator set by the circuit.Type: ApplicationFiled: June 22, 2018Publication date: December 27, 2018Applicant: California Institute of TechnologyInventors: Changhuei Yang, Sylvain Gigan
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Patent number: 9874502Abstract: The invention relates to a method for trapping particles contained in a fluid including at least the steps of generating a coherent light beam, diffusing the coherent light beam using a passive diffusive element to yield a diffused beam having a field of optical speckles, and causing the diffused beam to interact with a plurality of particles contained in a fluid.Type: GrantFiled: December 30, 2013Date of Patent: January 23, 2018Assignee: Fonds De L'espci-Georges CharpakInventors: Sylvain Gigan, Giorgio Volpe, Giovanni Volpe
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Publication number: 20180019822Abstract: The invention is related to a digital-data mixing apparatus (2), a data processing system (1) and an associated method for mixing digital-data. The digital-data mixing apparatus comprises, integrated in a housing (7), input means (8) for receiving a plurality of bits (I1 . . . In) of input digital data (4), electromagnetic emission means (9) for generating a modulated electromagnetic beam (15) wherein said input digital data (4) are converted in simultaneous modulations of the modulated electromagnetic beam (15), electromagnetic scattering means (10) for scattering the modulated electromagnetic beam (15) in a scattered electromagnetic beam (19), receiving means (11) for converting the scattered electromagnetic beam (19) in bits (O1 . . . Om) of output digital data (5), and output means (12) for providing said output digital data (5).Type: ApplicationFiled: February 4, 2016Publication date: January 18, 2018Applicants: PARIS SCIENCES ET LETTRES - QUARTIER LATIN, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), ECOLE SUPERIEURE DE PHYSIQUE ET DE CHIMIE INDUSTRI ELLES DE LA VILLE DE PARIS, UNIVERSITÉ PARIS DIDEROT - PARIS 7Inventors: Sylvain Gigan, Florent Krzakala, Laurent Daudet, Igor Carron, Angélique Dremeau, Alaa Saade
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Patent number: 9466938Abstract: The invention concerns a system for measuring and controlling the wave-front of a coherent light beam (32), comprising: a device for generating a reference light beam (36) that is coherent with said coherent light beam (32); a partially reflective monolithic device (38) comprising an array of elementary cells, each elementary cell comprising at least one element (40) for measuring a portion of the incident wave interfering between the coherent light beam and the reference light beam and a phase modulation element (42) for modulating the phase of the reflected beam; and a control device (46) for controlling said phase modulation element making use of the information from the associated measuring element.Type: GrantFiled: December 4, 2013Date of Patent: October 11, 2016Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Antoine Dupret, Sylvain Gigan, François Ramaz, Gilles Tessier, Arnaud Verdant
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Publication number: 20150338324Abstract: The invention relates to a method for trapping particles contained in a fluid including at least the steps of generating a coherent light beam, diffusing the coherent light beam using a passive diffusive element to yield a diffused beam having a field of optical speckles, and causing the diffused beam to interact with a plurality of particles contained in a fluid.Type: ApplicationFiled: December 30, 2013Publication date: November 26, 2015Inventors: Sylvain Gigan, Giorgio Volpe, Giovanni Volpe
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Publication number: 20150325973Abstract: The invention concerns a system for measuring and controlling the wave-front of a coherent light beam (32), comprising: a device for generating a reference light beam (36) that is coherent with said coherent light beam (32); a partially reflective mo nolithic device (38) comprising an array of elementary cells, each elementary cell comprising at least one element (40) for measuring a portion of the incident wave interfering between the coherent light beam and the reference light beam and a phase modulation element (42) for modulating the phase of the reflected beam; and a control device (46) for controlling said phase modulation element making use of the information from the associated measuring element.Type: ApplicationFiled: December 4, 2013Publication date: November 12, 2015Inventors: Antoine DUPRET, Sylvain GIGAN, François RAMAZ, Gilles TESSIER, Arnaud VERDANT
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Publication number: 20150036021Abstract: A method for estimating an optical, electromagnetic or acoustic image having at least the successive steps of: scattering an incident optical, electromagnetic or acoustic signal using a multiple scattering medium corresponding to a known transmission matrix stored into a memory of an imaging system; measuring the scattered signal using a detector array and storing the measurements into the memory of the imaging system; and determining an estimated image having a number of image elements that is greater than the number of measurements, at full spatial bandwidth. The estimated image is determined from the measurements and the transmission matrix using a sparsity-promoting algorithm.Type: ApplicationFiled: November 10, 2011Publication date: February 5, 2015Applicants: Centre National De La Recherche Scientifique - CNRS, The Texas A&M University System, Universite Pierre Et Marie CurieInventors: Sylvain Gigan, Geoffroy Lerosey, Laurent Daudet, Gilles Chardon, Sebastien Popoff, Igor Carron