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

Volume

146

Issue

5

fYear

1999

fDate

10/1/1999 12:00:00 AM

Firstpage

239

Lastpage

243

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;

fLanguage

English

Journal_Title

Optoelectronics, IEE Proceedings -

Publisher

iet

ISSN

1350-2433

Type

jour

DOI

10.1049/ip-opt:19990762

Filename

822115