Warren-Smith, S.Afshar Vahid, S.Monro, T.Sampson, D.Collins, S.Oh, K.Yamauchi, R.2009-10-212009-10-212008Proceedings of the 19th International Conference on Optical Fibre Sensors, 2008;7004978-0-8194-7204-50277-786Xhttp://hdl.handle.net/2440/51261Poster session 1, Article number 70041XA model is presented for calculating the performance of fluorescence-based optical-fibre sensors that considers the full vectorial nature of optical-fibre electromagnetic-field solutions making it suitable for modeling microstructured optical fibres with wavelength and sub-wavelength-scale features. By applying the model to a specific fibre geometry it is shown that high-index, small core (subwavelength) fibres allow for enhanced fluorescence capturing due to the formation of a thin, high-intensity layer at the core-cladding boundary. The model is evaluated in this regime for two sensing configurations of particular interest for future sensing systems, a side-access sensor for liquid-based sensing and a thin-layer (surface) sensor. Both configurations can offer improvements for fluorescence-based sensing.enConference paper002008373510.1117/12.7858870002583981000642-s2.0-4554910620641213Warren-Smith, S. [0000-0002-2612-6344]