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:
Aug. 04, 2026
Filed:
Jul. 31, 2020
Centre National DE LA Recherche Scientifique, Paris, FR;
Ecole Normale Superieure DE Paris, Paris, FR;
Sorbonne Universite, Paris, FR;
Ludovic Jullien, Paris, FR;
Raja Chouket, Paris, FR;
Agathe Espagne, Paris, FR;
Annie Lemarchand, Paris, FR;
Thomas Le Saux, Paris, FR;
Agnès Pellissier-Tanon, Paris, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
ECOLE NORMALE SUPERIEURE DE PARIS, Paris, FR;
SORBONNE UNIVERSITE, Paris, FR;
Abstract
A method for detecting a photochemically active chemical species in a sample, comprising the steps of: a) illuminating the sample with light at a wavelength suitable to trigger a reaction affecting an optical property of the chemical species according to an illumination sequence, such that: •in at least a first time window, the kinetics of the first reaction is limited by a photochemically-activated step of the reaction; •and in at least a second time window, the kinetics of the first reaction is limited by a thermally-activated step; b) measuring the evolution of the optical property during the first and the second time windows; c) determining at least a first and a second time constant representing the kinetics of the first reaction in the first and the second time windows, respectively; and d) using the determined time constants for identifying the chemical species. An apparatus for carrying out such a method.