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Proceedings Paper

Gas sensing using a surface plasmon resonance fibre device
Author(s): T. Allsop; R. Neal; E. M. Davies; C. Mou; P. Bond; S. Rehman; K. Kalli; D. J. Webb; P. Calverhouse; I. Bennion
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Paper Abstract

A series of surface plasmonic fibre devices were fabricated using multiple coatings deposited on a lapped section of a single mode fibre. Guided mode coupling to surface plasmons was promoted following UV laser irradiation of the coated region through a phase mask, which generated a surface relief grating structure. The devices showed high spectral sensitivities and strong coupling for low refractive indices as compared to other grating fibre devices. The plasmonic devices were used to detect the variation in the refractive indices of alkane gases with measured wavelength and coupling sensitivity to index of 1900 nm/RIU and 4000 dB/RIU, respectively.

Paper Details

Date Published: 14 October 2009
PDF: 4 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 750385 (14 October 2009); doi: 10.1117/12.848635
Show Author Affiliations
T. Allsop, Aston Univ. (United Kingdom)
R. Neal, Univ. of Plymouth (United Kingdom)
E. M. Davies, Aston Univ. (United Kingdom)
C. Mou, Aston Univ. (United Kingdom)
P. Bond, Univ. of Plymouth (United Kingdom)
S. Rehman, STR Fiber Technologies (United Kingdom)
K. Kalli, Cyprus Univ. of Technology (Cyprus)
D. J. Webb, Aston Univ. (United Kingdom)
P. Calverhouse, Univ. of Plymouth (United Kingdom)
I. Bennion, Aston Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 7503:
20th International Conference on Optical Fibre Sensors

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