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.
