The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 2025
Filed:
Dec. 24, 2020
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Universite Grenoble Alpes, Saint Martin D'heres, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Institut Polytechnique DE Grenoble, Grenoble, FR;
Thomas Lauwers, Grenoble, FR;
Skandar Basrour, Grenoble, FR;
Jean-Guillaume Coutard, Grenoble, FR;
Alain Gliere, Grenoble, FR;
Guillaume Laffont, Grenoble, FR;
COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris, FR;
UNIVERSITE GRENOBLE ALPES, Saint Martin d'Heres, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
INSTITUT POLYTECHNIQUE DE GRENOBLE, Grenoble, FR;
Abstract
The invention is a device and method for detecting an analyte in a medium. An exciting light source produces an exciting light wave, which propagates to the medium and heats the latter. The device comprises a transducer for detecting the heating of the medium. According to one embodiment, the transducer is a thermal transducer, configured to detect a variation in the temperature of the medium. According to another embodiment, the transducer is an acoustic transducer, configured to detect a photoacoustic wave propagating from the medium. Whatever the embodiment, the transducer employs a membrane, on which a waveguide is placed. The waveguide comprises a resonant optical cavity. Transduction is achieved by analyzing a variation in a resonant wavelength of the optical cavity.