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Integrated Bragg grating sensor applied to detection of phase transitions in liquid crystal and water

Integrated Bragg grating sensor applied to detection of phase transitions in liquid crystal and water
Integrated Bragg grating sensor applied to detection of phase transitions in liquid crystal and water
A planar Bragg grating in silica is used to form an integrated optical refractive index sensor. The device, inherently suited to remote sensing using single mode transmission fibre, is shown to clearly detect phase transitions in a nematic liquid crystal and in water. Transitions from ordered to isotropic, gas to liquid and liquid to solid as well as the reverse transitions can all be clearly identified. The sensor also allows supercooled liquid to be easily identified, a task previously found challenging by other sensor technologies.
888-891
Sparrow, I.J.G.
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Emmerson, G.D.
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Gawith, C.B.E.
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Smith, P.G.R.
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Kaczmarek, M.
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Dyadyusha, A.
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Voet, Marc
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Willsch, Reinhardt
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Ecke, Wolfgang
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Jones, Julian
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Culshaw, Brian
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Sparrow, I.J.G.
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Emmerson, G.D.
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Gawith, C.B.E.
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Smith, P.G.R.
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Kaczmarek, M.
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Dyadyusha, A.
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Voet, Marc
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Willsch, Reinhardt
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Ecke, Wolfgang
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Jones, Julian
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Culshaw, Brian
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Sparrow, I.J.G., Emmerson, G.D., Gawith, C.B.E., Smith, P.G.R., Kaczmarek, M. and Dyadyusha, A. (2005) Integrated Bragg grating sensor applied to detection of phase transitions in liquid crystal and water. Voet, Marc, Willsch, Reinhardt, Ecke, Wolfgang, Jones, Julian and Culshaw, Brian (eds.) 17th International Conference on Optical Fibre Sensors. 23 - 27 May 2005. pp. 888-891 . (doi:10.1117/12.624286).

Record type: Conference or Workshop Item (Paper)

Abstract

A planar Bragg grating in silica is used to form an integrated optical refractive index sensor. The device, inherently suited to remote sensing using single mode transmission fibre, is shown to clearly detect phase transitions in a nematic liquid crystal and in water. Transitions from ordered to isotropic, gas to liquid and liquid to solid as well as the reverse transitions can all be clearly identified. The sensor also allows supercooled liquid to be easily identified, a task previously found challenging by other sensor technologies.

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e-pub ahead of print date: 2005
Venue - Dates: 17th International Conference on Optical Fibre Sensors, 2005-05-23 - 2005-05-27
Organisations: Optoelectronics Research Centre, Quantum, Light & Matter Group

Identifiers

Local EPrints ID: 42184
URI: https://eprints.soton.ac.uk/id/eprint/42184
PURE UUID: e3f8621b-20b2-4156-ad7c-b086ef52b5d3
ORCID for C.B.E. Gawith: ORCID iD orcid.org/0000-0002-3502-3558

Catalogue record

Date deposited: 22 Nov 2006
Last modified: 20 Jul 2019 01:08

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