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AssigneesCambridge Display Technology Limited, Sumitomo Chemical Company, Limited
InventorsMatthew ROBERTS, May WHEELER
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A device for optically exciting fluorescence is disclosed. The device comprises transparent substrate having first and second opposite faces and a multilayer stack disposed on the second face of the substrate. The multilayer stack comprises a first layer having first and second opposite faces and a first refractive index and a second layer having first and second opposite faces and a second refractive index. The first face of the first layer is disposed on the second face of the substrate. The first face of the second layer is disposed on the second face of the first layer such that the first layer is interposed between the second layer and the substrate. The substrate has a third refractive index. The first refractive index is less than the second refractive index and the third refractive index. The device comprises a light source carried by the first face of the substrate and arranged to emit light towards the first face of the first layer.
A device for optically exciting fluorescence, the device comprising:
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A device according to claim 25, wherein the device further comprises a layer of receptors for binding to a specific analyte carried by the second face, the receptors comprising a fluorescent material.
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Dependencies are inferred from the claim text.