The University of Southampton
University of Southampton Institutional Repository

A Bragg grating sensor for detection of monolayers at a surface

A Bragg grating sensor for detection of monolayers at a surface
A Bragg grating sensor for detection of monolayers at a surface
Planar waveguides can be written with a UV-laser into photosensitized silica to produce a wide range of optical devices. Careful modulation of two interfering beams allows Bragg gratings to be directly written into the channel (Figure 1.a). These Bragg gratings are inherently sensitive to temperature and strain. However etching away the surface exposes the mode within the grating to its surroundings. The corresponding observed shift in Bragg wavelength can be used to detect changes in this environment [1]. Figure 1.b shows a large wavelength shift due to two analytes of markedly different refractive index. This demonstrates the apodised spectral response that in practice allows resolution of sub-picometer shifts in wavelength
Parker, R.M.
b052ca4d-b6c7-4fdd-a2f9-45032f0ff13f
Gates, J.C.
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Smith, P.G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Grossel, M.C.
403bf3ff-6364-44e9-ab46-52d84c6f0d56
Parker, R.M.
b052ca4d-b6c7-4fdd-a2f9-45032f0ff13f
Gates, J.C.
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Smith, P.G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Grossel, M.C.
403bf3ff-6364-44e9-ab46-52d84c6f0d56

Parker, R.M., Gates, J.C., Smith, P.G.R. and Grossel, M.C. (2009) A Bragg grating sensor for detection of monolayers at a surface. European Conference on Lasers and Electro-Optics (CLEO/Europe-EQEC), , Munich, Germany. 14 - 19 Jun 2009.

Record type: Conference or Workshop Item (Paper)

Abstract

Planar waveguides can be written with a UV-laser into photosensitized silica to produce a wide range of optical devices. Careful modulation of two interfering beams allows Bragg gratings to be directly written into the channel (Figure 1.a). These Bragg gratings are inherently sensitive to temperature and strain. However etching away the surface exposes the mode within the grating to its surroundings. The corresponding observed shift in Bragg wavelength can be used to detect changes in this environment [1]. Figure 1.b shows a large wavelength shift due to two analytes of markedly different refractive index. This demonstrates the apodised spectral response that in practice allows resolution of sub-picometer shifts in wavelength

Text
4321.pdf - Other
Download (136kB)

More information

Published date: 14 June 2009
Venue - Dates: European Conference on Lasers and Electro-Optics (CLEO/Europe-EQEC), , Munich, Germany, 2009-06-14 - 2009-06-19

Identifiers

Local EPrints ID: 78999
URI: http://eprints.soton.ac.uk/id/eprint/78999
PURE UUID: 1208b65b-934c-4d3e-a401-8383434a4f8b
ORCID for J.C. Gates: ORCID iD orcid.org/0000-0001-8671-5987
ORCID for P.G.R. Smith: ORCID iD orcid.org/0000-0003-0319-718X
ORCID for M.C. Grossel: ORCID iD orcid.org/0000-0001-7469-6854

Catalogue record

Date deposited: 19 Mar 2010
Last modified: 14 Mar 2024 02:45

Export record

Contributors

Author: R.M. Parker
Author: J.C. Gates ORCID iD
Author: P.G.R. Smith ORCID iD
Author: M.C. Grossel ORCID iD

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×