公开(公告)号：US11175139B2

公开(公告)日：2021-11-16

申请号：US16488398

申请日：2018-02-23

Applicant: IXBLUE ,  INSTITUT D'OPTIQUE GRADUATE SCHOOL ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE DE BORDEAUX

Inventor： Brynle Barrett ,  Baptiste Battelier ,  Philippe Bouyer ,  Fabien Napolitano

IPC: G01C19/58 ,  G01C21/16 ,  G01C19/64

Abstract: Disclosed is a hybrid inertial measurement system including a cold atom interferometric inertial sensor having a laser source generating a sequence of laser pulses towards a cold atom burst and a conventional inertial sensor attached to the inertial reference frame of the interferometric inertial sensor. The hybrid system includes a signal processing system suitable for receiving an inertial measurement signal from the conventional inertial sensor and for generating in real time a non-linear frequency modulation signal, the feedback loop electronic system being configured to modulate in real time the central optical frequency of the laser according to the modulation signal, such that the cold atom interferometric inertial sensor generates a first hybrid inertial measurement signal by atomic interferometry corrected for the relative movements of the inertial reference frame.

公开(公告)号：US20190242820A1

公开(公告)日：2019-08-08

申请号：US16318845

申请日：2017-07-19

Applicant: UNIVERSITE DE BORDEAUX ,  INSTITUT POLYTECHNIQUE DE BORDEAUX ,  CENTRE NATIONALE DE LA RECHERCHE SCIENTIFIQUE ,  ECOLE NATIONALE SUPERIEURE DES ARTS ET METIERS ,  COMMISSARIAT A L'ENERGIE ATOMIQUE AUX ENERGIES ALTERNATIVES ,  INSTITUT D'OPTIQUE GRADUATE SCHOOL

Inventor： Bertrand AUDOIN ,  Eric CORMIER ,  Jérôme LHERMITE ,  Giorgio SANTARELLI ,  Yannick GUILLET ,  Adrien AUBOURG

IPC: G01N21/63 ,  G01J3/44

Abstract: Disclosed is an acoustic resonance spectrometry system for analysing a sample, which includes an optical pump-probe device adapted to generate a pump beam and a probe beam, the pump beam being consisted of a series of ultra-short pump light pulses having a repetition frequency in the spectral domain of the gigahertz, the pump beam being directed towards an optoacoustic transducer to generate a periodic grating of coherent acoustic phonons in the sample, the probe beam being directed towards the sample to form a scattering beam of the probe beam on the grating of phonons, a frequency variation device being adapted to vary the repetition frequency of the pump beam in a spectral range and a photo-detection system configured to measure a scattering signal as a function of the repetition frequency in the spectral range.

公开(公告)号：US09798218B2

公开(公告)日：2017-10-24

申请号：US14648231

申请日：2013-11-27

Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  INSTITUT D'OPTIQUE GRADUATE SCHOOL ,  UNIVERSITE PARIS-SUD

Inventor： Philippe Ben-Abdallah ,  Anne-Lise Coutrot ,  Mondher Besbes ,  Henri Benisty

IPC: G02B27/42 ,  G02F1/29 ,  G02B5/18 ,  G02F1/01

CPC classification number: G02F1/292 ,  G02B5/1828 ,  G02B27/42 ,  G02F1/0147 ,  G02F1/035 ,  G02F1/29 ,  G02F2/02 ,  G02F2203/11

Abstract: 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.

公开(公告)号：US20210368612A1

公开(公告)日：2021-11-25

申请号：US16766385

申请日：2018-11-22

Applicant: IXBLUE ,  INSTITUT D'OPTIQUE GRADUATE SCHOOL ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE DE BORDEAUX

Inventor： Henri PORTE ,  Baptiste BATTELIER

IPC: H05H3/04 ,  H01S5/00 ,  H01S5/125 ,  H01S5/042 ,  G02F1/01 ,  G02F1/37 ,  G02F1/31 ,  H01S5/0687 ,  G02F1/355 ,  H01S3/067 ,  H01S5/50 ,  H01S3/00 ,  H01S3/13

Abstract: Disclosed is a device for interaction between a laser beam and a hyperfine energy transition of a chemical species. The device further includes an electro-optic modulator with a single sideband with an input optical waveguide suitable for receiving a source laser beam and an output optical waveguide suitable for generating an output laser beam and an electronic system suitable for generating and applying, simultaneously, a first modulated electrical signal, sin(Ω1t)) to a first hyperfrequency pulse on a first high-frequency electrode of the electro-optic modulator and, respectively, another modulated electrical signal, cos(Ω1t)) to the first pulse on another high-frequency electrode of the electro-optic modulator, in such a way as to frequency-switch the output laser beam to a first optical frequency offset from the first pulse with respect to the initial optical frequency.

公开(公告)号：US20210175677A1

公开(公告)日：2021-06-10

申请号：US17048921

申请日：2019-04-19

Applicant: ECOLE POLYTECHNIQUE ,  INSTITUT D'OPTIQUE GRADUATE SCHOOL (IOGS) ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE PARIS SACLAY

Inventor： Dimitrios PAPADOPOULOS ,  Xavier DELEN ,  Frederic DRUON

IPC: H01S3/00 ,  G02F1/35

Abstract: A method for generating ultrashort pulses includes directing a master beam having ultrashort pulses and at least one slave beam through an optical gate material. The intensity of the slave beam upstream of the optical gate material is lower than that of the master beam upstream of the optical gate material. The optical gate material and the pulses of the master beam are chosen to induce a Kerr effect when the master beam passes through the optical gate material, the Kerr effect producing a modulation of the phase of the slave beam in association with pulses of the master beam when the slave beam passes through the optical gate material. The modulation of the phase of the slave beam is transformed into a modulation of the amplitude thereof using a complementary optical device to generate a slave beam downstream of the optical gate material having ultrashort pulses.

公开(公告)号：US10578555B2

公开(公告)日：2020-03-03

申请号：US16318845

申请日：2017-07-19

Applicant: UNIVERSITE DE BORDEAUX ,  INSTITUT POLYTECHNIQUE DE BORDEAUX ,  CENTRE NATIONALE DE LA RECHERCHE SCIENTIFIQUE ,  ECOLE NATIONALE SUPERIEURE DES ARTS ET METIERS ,  COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES ,  INSTITUT D'OPTIQUE GRADUATE SCHOOL

Inventor： Bertrand Audoin ,  Eric Cormier ,  Jérôme Lhermite ,  Giorgio Santarelli ,  Yannick Guillet ,  Adrien Aubourg

IPC: G01J3/00 ,  G01N21/63 ,  G01J3/44 ,  G01J9/00

Abstract: Disclosed is an acoustic resonance spectrometry system for analysing a sample, which includes an optical pump-probe device adapted to generate a pump beam and a probe beam, the pump beam being consisted of a series of ultra-short pump light pulses having a repetition frequency in the spectral domain of the gigahertz, the pump beam being directed towards an optoacoustic transducer to generate a periodic grating of coherent acoustic phonons in the sample, the probe beam being directed towards the sample to form a scattering beam of the probe beam on the grating of phonons, a frequency variation device being adapted to vary the repetition frequency of the pump beam in a spectral range and a photo-detection system configured to measure a scattering signal as a function of the repetition frequency in the spectral range.

公开(公告)号：US20190274759A1

公开(公告)日：2019-09-12

申请号：US16319719

申请日：2017-07-21

Applicant: UNIVERSITE DE BORDEAUX ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  IRISIOME ,  INSTITUT D'OPTIQUE GRADUATE SCHOOL

Inventor： Romain ROYON ,  Giorgio SANTARELLI ,  Jérôme LHERMITE ,  Romain DUBRASQUET

IPC: A61B18/20 ,  A61B5/00 ,  A61N5/06

Abstract: Disclosed is a dermatological diagnostic and treatment system including a light source device, a light flow collecting device, a spectroscopic measurement device, and a computer. The light source device includes a laser source tunable in wavelength inside the spectral range, the laser source being tunable in duration and/or rate and the laser source being adapted to generate a second treatment laser beam of high intensity at said first wavelength towards the epidermal surface. The dermatological diagnostic and treatment system further includes a temperature sensor and a feedback device, the temperature sensor being arranged to record a temperature measurement signal of the epidermal surface as a function of the application of the second laser beam. The feedback device is configured to modify the duration and/or rate of the laser pulses as a function of the temperature measurement signal.

公开(公告)号：US20240045188A1

公开(公告)日：2024-02-08

申请号：US18265640

申请日：2021-12-09

Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  INSTITUT D'OPTIQUE GRADUATE SCHOOL ,  UNIVERSITE DE BORDEAUX

Inventor： Alberto AGUILAR ,  Pierre BON

IPC: G02B21/00 ,  G02B21/33

CPC classification number: G02B21/0032 ,  G02B21/33 ,  G02B21/0072 ,  G02B21/008 ,  G02B21/0048

Abstract: A scanning confocal photon-reassignment microscope is configured to operate in a coherent (reflectance or transmission) imaging mode and having a confocal pinhole the diameter of which is between 2 and 4 Airy units. The microscope can be used to observe viral particles in suspension.

公开(公告)号：US20210389127A1

公开(公告)日：2021-12-16

申请号：US17288483

申请日：2019-10-28

Applicant: IXBLUE ,  INSTITUT D'OPTIQUE GRADUATE SCHOOL ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE DE BORDEAUX

Inventor： David Brynle BARRETT ,  Pierrick CHEINEY ,  Philippe BOUYER

IPC: G01C19/58 ,  G01P15/093 ,  G01P15/18

Abstract: Disclosed is a multi-axis atom interferometer system, including a source of cold atoms, a laser source generating a first light pulse configured in such a way as to spatially split the source of cold atoms into a first cloud of atoms propagating along a first trajectory along a first axis and a second cloud of atoms propagating along a second trajectory along a second axis, a second light pulse adapted to spatially deflect the first trajectory along the second axis and simultaneously the second trajectory along the first axis towards a first point and a last light pulse adapted to recombine the at least one part of the first cloud of atoms and the at least one part of the second cloud of atoms at the first point, and a detection system measuring an interferometric phase-shift accumulated between the first light pulse and the last light pulse.

公开(公告)号：US20200063099A1

公开(公告)日：2020-02-27

申请号：US16462965

申请日：2017-11-23

Applicant: UNIVERSITÉ DE BORDEAUX ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  INSTITUT D'OPTIQUE GRADUATE SCHOOL

Inventor： MAXIME FEYEUX ,  KEVIN ALESSANDRI ,  PIERRE NASSOY ,  LAURENT COGNET ,  ABDELHAMID BENAZZOUZ ,  ERWAN BEZARD

IPC: C12N5/0793 ,  C12N5/00 ,  A61K35/30

Abstract: The invention relates to a neural tissue unit for use in implantation into the nervous system of a human or non-human mammal, wherein said neural tissue unit contains differentiated post-mitotic neuronal cells in an extracellular matrix, said unit being obtained from a cellular microcompartment comprising a hydrogel capsule surrounding the neural tissue unit, and said hydrogel capsule being at least partially removed before use of the neural tissue unit. The invention also relates to a process for preparing such a neural tissue unit.