Holographic sensor based on a volume hologram in a porous...

G - Physics – 01 – N

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Details

G01N 21/00 (2006.01) G01N 21/47 (2006.01) G01N 21/75 (2006.01) G02B 5/32 (2006.01)

Patent

CA 2481474

A sensor for the detection of an analyte, comprising a holographic element comprising a medium and a hologram disposed throughout the volume of the medium, wherein an optical characteristic of the hologram changes as a result of a variation of a physical property occurring throughout the volume of the medium, wherein the medium is obtainable by formation in situ in the presence of a pore-forming agent, wherein the agent is not present in the sensor or does not react with the analyte and the sensor.

L'invention concerne un capteur conçu pour détecter un analyte. Ce capteur est pourvu d'un élément holographique qui comprend une substance et un hologramme disposé à travers le volume de la substance. Une caractéristique optique de cet hologramme change en fonction d'une variation d'une propriété physique survenant à travers le volume de la substance. Ladite substance peut être obtenue par formation in situ, en présence d'un agent porogène qui n'est pas présent dans le capteur ou ne réagit pas avec l'analyte et le capteur.

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