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On-chip cavity-enhanced absorption spectroscopy using a white light-emitting diode and polymer mirrors

Rushworth, Cathy M., Jones, Gareth, Fischlechner, Martin, Walton, Emma and Morgan, Hywel (2015) On-chip cavity-enhanced absorption spectroscopy using a white light-emitting diode and polymer mirrors Lab on a Chip, 15, (3), pp. 711-717. (doi:10.1039/C4LC01264J).

Record type: Article

Abstract

We have developed a disposable microfluidic chip with integrated cavity mirrors comprised of two pieces of 3M Vikuiti™ enhanced specular reflector II (ESRII) film, for performing cavity-enhanced absorption spectroscopy with a white light-emitting diode (LED). Compared to measurements made with a chip without cavity mirrors, the absorption path length is enhanced by a maximum factor of 28 at 544 nm, and the sensitivity is enhanced by approximately 5 times, enabling micromolar range detection limits to be achieved in an optical path length of only 50 ?m.

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More information

Accepted/In Press date: 5 December 2014
e-pub ahead of print date: 5 December 2014
Published date: 7 February 2015
Organisations: Chemistry, Electronics & Computer Science

Identifiers

Local EPrints ID: 373131
URI: http://eprints.soton.ac.uk/id/eprint/373131
ISSN: 1473-0197
PURE UUID: a77bb56d-ebdf-4d88-9bd7-cc1d61ea7cff
ORCID for Hywel Morgan: ORCID iD orcid.org/0000-0003-4850-5676

Catalogue record

Date deposited: 08 Jan 2015 16:57
Last modified: 17 Jul 2017 21:36

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Contributors

Author: Cathy M. Rushworth
Author: Gareth Jones
Author: Emma Walton
Author: Hywel Morgan ORCID iD

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