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Electrochemically controlled optical waveguide sensors

Lavers, C.R., Piraud, C., Wilkinson, J.S., Brust, M. and Schiffrin, D.J. (1993) Electrochemically controlled optical waveguide sensors At OFS: 9th Optical Fibre Sensors Conference, Italy. 04 - 06 May 1993.

Record type: Conference or Workshop Item (Paper)


Optical techniques are at the forefront of modern analytical methods due to their inherent high specificity. From the point of view of sensor technology, the transfer of chemical information into a measurable signal is of utmost importance. In this respect, planar optical waveguides show great promise for realising novel chemical and biological sensors which use evanescent fields to probe specifically sensitised films on the waveguide surface. Such sensors may detect changes in the refractive index of films using, for example, surface plasmon resonance (SPR) [1], light emission from the binding of proteins labelled with fluorophores [2], or the change in absorption spectrum of a film caused by a chemical reaction [3]. The use of photolithography in integrated optics technology allows mass production of complex multisensors on small and robust substrates. Electrochemical methods allow electrical resetting of reactions, or improved sensitivity through phase-sensitive detection.

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Published date: 1993
Venue - Dates: OFS: 9th Optical Fibre Sensors Conference, Italy, 1993-05-04 - 1993-05-06


Local EPrints ID: 77264
PURE UUID: e0394c31-bf62-45c5-a2c9-0eb1f497073e
ORCID for J.S. Wilkinson: ORCID iD

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:33

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Author: C.R. Lavers
Author: C. Piraud
Author: J.S. Wilkinson ORCID iD
Author: M. Brust
Author: D.J. Schiffrin

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