CHEMICAL SENSOR

A chemically-sensitive surface plasmon resonance device comprises a slab (11) of a light-transmissive material (e.g. perspex) having a layer (14) of a metal on one side and a plurality of ridges (13) on the opposite side. A layer (15) of a chemically sensitive material is formed on the metal layer....

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DANIELS, PHELIM BRINLEY, WEBB, BRIAN CHRISTOPHER
Format:	Patent
Sprache:	eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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Beschreibung
Zusammenfassung:	A chemically-sensitive surface plasmon resonance device comprises a slab (11) of a light-transmissive material (e.g. perspex) having a layer (14) of a metal on one side and a plurality of ridges (13) on the opposite side. A layer (15) of a chemically sensitive material is formed on the metal layer. White light incident on the ridges undergoes reflection at the interface of the slab (11) and metal layer (14) and is dispersed as it leaves the slab. Exposure of the chemically sensitive layer (15) to an analyte causes a change, as a function of wavelength of reflected light, of a plasmon resonance absorption.