Refractive index sensitivity of fibre optic long period gratings with SiO2 nanoparticle based mesoporous coatings
Date
2011-12-31T00:00:00Z
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Type
Conference paper
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Free to read from
Citation
Sergiy Korposha, Seung-Woo Leea, Stephen W. James and Ralph P. Tatam. 21st International Conference on Optical Fiber Sensors, Proceedings of SPIE 77539A, May 15-19, 2011
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.
Description
Software Description
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Github
Keywords
Fibre-optic sensor, Long period grating, Nanoporous film, refractive index, Refractometer