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1. EP2707767 - A METHOD OF AND A SYSTEM FOR CHARACTERISING A MATERIAL

Office
European Patent Office
Application Number 12785111
Application Date 14.05.2012
Publication Number 2707767
Publication Date 19.03.2014
Publication Kind A4
IPC
G02B 6/00
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
A61B 5/1459
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
145Measuring characteristics of blood in vivo, e.g. gas concentration, pH-value
1455using optical sensors, e.g. spectral photometrical oximeters
1459invasive, e.g. introduced into the body by a catheter
G01N 21/00
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
G01N 21/64
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
62Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
63optically excited
64Fluorescence; Phosphorescence
G01N 21/77
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
75Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
77by observing the effect on a chemical indicator
CPC
A61B 5/1459
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
145Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
1455using optical sensors, e.g. spectral photometrical oximeters
1459invasive, e.g. introduced into the body by a catheter
F04C 2270/041
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
2270Control; Monitoring or safety arrangements
04Force
041Controlled or regulated
G01N 21/6428
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
62Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
63optically excited
64Fluorescence; Phosphorescence
6428Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
G01N 21/7746
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
75Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
77by observing the effect on a chemical indicator
7703using reagent-clad optical fibres or optical waveguides
7746the waveguide coupled to a cavity resonator
G01N 2021/772
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
75Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
77by observing the effect on a chemical indicator
7703using reagent-clad optical fibres or optical waveguides
7706Reagent provision
772Tip coated light guide
G01N 2021/7786
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
75Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
77by observing the effect on a chemical indicator
7769Measurement method of reaction-produced change in sensor
7786Fluorescence
Applicants ADELAIDE RES & INNOVATION PTY
Inventors FRANCOIS ALEXANDRE
MONRO TANYA
ROWLAND KRISTOPHER
Designated States
Priority Data 2011901833 13.05.2011 AU
Title
(DE) VERFAHREN UND SYSTEM ZUR CHARAKTERISIERUNG EINES MATERIALS
(EN) A METHOD OF AND A SYSTEM FOR CHARACTERISING A MATERIAL
(FR) PROCÉDÉ ET SYSTÈME POUR CARACTÉRISER UN MATÉRIAU
Abstract
(EN) A system for characterising a material is provided. The system comprises an optical sensor comprising an optical waveguide, the optical waveguide having first and second ends and being characterised by having a numerical aperture greater than or equal to 0.2, and a microresonator comprising an optically active material, the microresonator being positioned in an optical near field of an end face of the first end of the optical waveguide such that the optically active material is excitable by light. The system further comprises a light source for exciting the optically active material of the microresonator so as to generate whispering gallery modes (WGMs) in the microresonator and a light collector for collecting an intensity of light that is associated with the WGMs excited in the microresonator.
(FR) L'invention concerne un système destiné à caractériser un matériau. Ledit système comprend un capteur optique comprenant un guide d'onde optique, ledit guide d'onde ayant une première et une seconde extrémités et étant caractérisé par le fait d'avoir un orifice numérique supérieur ou égal à 0,2, et un microrésonateur comprenant un matériau optiquement actif, le microrésonateur étant positionné dans un champ optique proche d'une face d'extrémité de la première extrémité du guide d'onde optique de façon que le matériau optiquement actif soit excitable par la lumière. Le système comprend en outre une source lumineuse destinée à exciter ledit matériau optiquement actif du microrésonateur de manière à générer des modes de galerie (WGM) dans le microrésonateur et un collecteur de lumière qui recueille une intensité lumineuse associée aux WGM excités dans le microrésonateur.