Enhancing chemical sensitivity of a tilted planar Bragg grating using a thin gold layer
Enhancing chemical sensitivity of a tilted planar Bragg grating using a thin gold layer
The use of weakly tilted Bragg gratings to couple light from core waveguide modes to plasmon resonances within thin gold layers has gained increased interest over recent years. Chemical sensing using such techniques has a multitude of advantages, including access to developed gold based chemistry for surface functionalisation and an enhancement of chemical sensitivity, particularly for the biochemically ubiquitous solvent, water (1.33). Despite the obvious benefits of such devices, fabrication has principally been limited to optical fibre platforms, with little fabrication development being made in the planar regime. This work reports the use of a thin (50 nm) sputtered gold layer to enhance the chemical sensitivity of a weakly tilted planar Bragg grating (TPBG), illustrated in Figure 1 (a). Therefore, allowing access to the benefits of planar integration for this newly emerging technology.
978-1-4577-0532-8
1
Holmes, C.
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Daly, Keith
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Carpenter, L.G.
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Gates, J.C.
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Sparrow, I.J.G.
3b11b080-98d5-41fe-8e15-bc12d17dc259
D'Alessandro, G.
bad097e1-9506-4b6e-aa56-3e67a526e83b
Smith, P.G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
May 2011
Holmes, C.
16306bb8-8a46-4fd7-bb19-a146758e5263
Daly, Keith
29920932-1779-4d08-81f8-bdd898191e5a
Carpenter, L.G.
0daa548e-0d42-4b06-b914-45bfbec41759
Gates, J.C.
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Sparrow, I.J.G.
3b11b080-98d5-41fe-8e15-bc12d17dc259
D'Alessandro, G.
bad097e1-9506-4b6e-aa56-3e67a526e83b
Smith, P.G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Holmes, C., Daly, Keith, Carpenter, L.G., Gates, J.C., Sparrow, I.J.G., D'Alessandro, G. and Smith, P.G.R.
(2011)
Enhancing chemical sensitivity of a tilted planar Bragg grating using a thin gold layer.
CLEO/EQEC 2011: Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, Germany.
22 - 26 May 2011.
.
(doi:10.1109/CLEOE.2011.5943283).
Record type:
Conference or Workshop Item
(Paper)
Abstract
The use of weakly tilted Bragg gratings to couple light from core waveguide modes to plasmon resonances within thin gold layers has gained increased interest over recent years. Chemical sensing using such techniques has a multitude of advantages, including access to developed gold based chemistry for surface functionalisation and an enhancement of chemical sensitivity, particularly for the biochemically ubiquitous solvent, water (1.33). Despite the obvious benefits of such devices, fabrication has principally been limited to optical fibre platforms, with little fabrication development being made in the planar regime. This work reports the use of a thin (50 nm) sputtered gold layer to enhance the chemical sensitivity of a weakly tilted planar Bragg grating (TPBG), illustrated in Figure 1 (a). Therefore, allowing access to the benefits of planar integration for this newly emerging technology.
More information
Published date: May 2011
Venue - Dates:
CLEO/EQEC 2011: Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, Germany, 2011-05-22 - 2011-05-26
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 343030
URI: https://eprints.soton.ac.uk/id/eprint/343030
ISBN: 978-1-4577-0532-8
PURE UUID: 2096b55c-6dd1-410a-9ebf-94e6812a39f2
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Date deposited: 20 Sep 2012 16:05
Last modified: 17 Oct 2019 00:38
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Author:
I.J.G. Sparrow
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