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Proceedings Paper

Refractive index sensitivity of fibre optic long period gratings with SiO2 nanoparticle based mesoporous coatings
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Paper Abstract

A fibre optic long period grating (LPG) with an nano-assembled mesoporous coating of alternate layers of poly (allylamine hydrochloride) (PAH) and SiO2 nanospheres was used for the development of a fibre-optic refractometer. PAH/SiO2 films of different thickness have been deposited onto an LPG in order to study the effect of the film thickness on sensor performance. The device showed a sensitivity of 1927 nm/RIU over a RI range of 1.3233-1.4906.

Paper Details

Date Published: 18 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77539A (18 May 2011); doi: 10.1117/12.884777
Show Author Affiliations
Sergiy Korposh, Univ. of Kitakyushu (Japan)
Seung-Woo Lee, Univ. of Kitakyushu (Japan)
Stephen W. James, Cranfield Univ. (United Kingdom)
Ralph P Tatam, Cranfield Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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