Wavelength tunable surface plasmon resonance sensor

G - Physics – 01 – N

Patent

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G01N 21/55 (2006.01)

Patent

CA 2503686

This invention provides methods, devices and device components for sensing, imaging and characterizing changes in the composition of a probe region. More particularly, the present invention provides methods and devices for detecting changes in the refractive index of a probe region positioned adjacent to a sensing surface, preferably a sensing surface comprising a thin conducting film supporting surface plasmon formation. In addition, the present invention provides methods and device for generating surface plasmons in a probe region and characterizing the composition of the probe region by generating one or more surface plasmon resonances curves and/or surface plasmon resonance images of the probe region.

L'invention concerne des procédés, des dispositifs et des composants de dispositifs de détection, de mise en images et de caractérisation des changements de la composition d'une région explorée. La présente invention concerne, en particulier, des procédés et des dispositifs de détection des changements de l'indice de réfraction de la région explorée positionnée de manière adjacente à une surface de détection, de préférence une surface de détection comprenant un mince film conducteur permettant la formation de plasmons de surface. La présente invention concerne, de plus, des procédés et un dispositif de génération de plasmons de surface dans une région explorée, et de caractérisation de la composition de la région explorée par génération d'une ou de plusieurs sources de résonance plasmonique de surface et/ou d'images de résonance plasmonique de surface de la région explorée.

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