Holographic sensors and their production
AssigneeCambridge University Technical Services Limited
InventorsJeffrey Blyth, Christopher Robin Lowe, Andrew Geoffrey Mayes, Roger Bradley Millington
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Abstract
A method for the production of a holographic sensor wherein the holographic recording material forming the sensitive element is a polymer matrix, which comprises diffusing into the matrix one or more soluble salts that undergo reaction in situ to form an insoluble sensitive precipitate; and recording a holographic image. This method allows the production of a holographic sensor wherein the holographic recording material forming the sensitive element is an insoluble polymer film.
Claims37
A method for the production of a holographic sensor wherein the holographic recording material forming the sensitive element is a polymer matrix, said method comprising providing the polymer matrix;
- diffusing into the polymer matrix one or more soluble salts that undergo reaction in situ to form an insoluble photosensitive precipitate;
- and recording a holographic image.
A sensor for an analyte, the sensor comprising a hologram supported within a polymer matrix, wherein at least one optical characteristic of the hologram varies as a result of variation of a physical property occurring throughout the bulk of the matrix, characterized in that the polymer matrix is an insoluble polymer film.
A method for the detection of an analyte in a sample, which comprises contacting the sample with a sensor comprising a hologram supported within a polymer matrix, wherein at least one optical characteristic of the hologram varies as a result of variation of a physical property occurring throughout the bulk of the matrix, characterized in that the polymer matrix is an insoluble polymer film, and observing an optical characteristic of the hologram on the application of light.
Dependencies are inferred from the claim text.