Title :
Evanescent field characterisation of tapered optical fibre sensors in liquid environments using near field scanning optical microscopy and atomic force microscopy
Author :
Huntington, S.T. ; Katsifolis, J. ; Moar, P.N. ; Mulvaney, P. ; Roberts, A. ; Cahill, L.W. ; Nugent, K.A.
Author_Institution :
Sch. of Chem., Melbourne Univ., Parkville, Vic., Australia
fDate :
10/1/1999 12:00:00 AM
Abstract :
Near field scanning optical microscopy (NSOM) is used to measure the evanescent field surrounding a biconically tapered optical fibre sensor in air, water and dimethyl sulfoxide solution. These measurements are found to be in good agreement with those theoretically predicted using the finite difference-beam propagation method in combination with refractive and atomic force microscope measurements, demonstrating the validity of the model described for a number of environments
Keywords :
atomic force microscopy; fibre optic sensors; finite difference methods; near-field scanning optical microscopy; optical fibre fabrication; optical fibre testing; atomic force microscope measurements; atomic force microscopy; biconically tapered optical fibre sensor; dimethyl sulfoxide solution; evanescent field characterisation; finite difference-beam propagation method; liquid environments; near field scanning optical microscopy; refractive measurements; tapered optical fibre sensors;
Journal_Title :
Optoelectronics, IEE Proceedings -
DOI :
10.1049/ip-opt:19990762
