Electrochemically controlled optical waveguide sensors
Electrochemically controlled optical waveguide sensors
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.
Lavers, C.R.
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Piraud, C.
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Wilkinson, J.S.
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Brust, M.
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Schiffrin, D.J.
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1993
Lavers, C.R.
16297c8f-6625-4e72-9699-4d8bfe464600
Piraud, C.
c02b5656-a0cf-4bc2-9ad7-801b99ff1ffc
Wilkinson, J.S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Brust, M.
5e47a285-e2d9-4da7-9e2b-fd508692fe74
Schiffrin, D.J.
f9d7c157-18a5-4532-9ea2-80755bdc0cc0
Lavers, C.R., Piraud, C., Wilkinson, J.S., Brust, M. and Schiffrin, D.J.
(1993)
Electrochemically controlled optical waveguide sensors.
OFS: 9th Optical Fibre Sensors Conference, Florence, Italy.
04 - 06 May 1993.
Record type:
Conference or Workshop Item
(Paper)
Abstract
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.
More information
Published date: 1993
Venue - Dates:
OFS: 9th Optical Fibre Sensors Conference, Florence, Italy, 1993-05-04 - 1993-05-06
Identifiers
Local EPrints ID: 77264
URI: http://eprints.soton.ac.uk/id/eprint/77264
PURE UUID: e0394c31-bf62-45c5-a2c9-0eb1f497073e
Catalogue record
Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:32
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Contributors
Author:
C.R. Lavers
Author:
C. Piraud
Author:
M. Brust
Author:
D.J. Schiffrin
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