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|Title:||Highly-efficient fluorescence sensing using microstructured optical fibres; side-access and thin-layer configurations|
Afshar Vahid, S.
|Citation:||Proceedings of the 19th International Conference on Optical Fibre Sensors, 2008;7004|
|Publisher:||S P I E - International Society for Optical Engineering|
|Publisher Place:||Bellingham, Wa, USA|
|Series/Report no.:||Proceedings of SPIE|
|Conference Name:||International Conference on Optical Fibre Sensors (19th : 2008 : Perth, W.Aust.)|
|Abstract:||A 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.|
|Description:||Poster session 1, Article number 70041X|
|Appears in Collections:||Centre of Expertise in Photonics publications|
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