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Proceedings Paper

Photonic sensor of liquids based on suspended-core fibres
Author(s): Barbara Wajnchold; Michal Grabka; Szymon Pustelny; Wojciech Gawlik; Pawel Mergo
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Paper Abstract

The small size of the core (about 1 μm) of the suspended-core optical fibres gives rise to evanescent wave in the surrounding channels. That process allows efficient coupling between light and liquid introduced into the channels and application of the fibre for analytic purposes. In the presented work, the channels of a suspended-core fibre were filled with water and aqueous solutions of oxazine 725 perchlorate and their absorption spectra were measured. While the spectra of the water-filled fibre were consistent with the Lambert-Beer law, the absorptivity of the fibre filled with oxazine 725 perchlorate solution demonstrated an increased sensitivity caused by aggregation of the oxazine molecules, independent on the fibre length.

Paper Details

Date Published: 25 April 2012
PDF: 8 pages
Proc. SPIE 8426, Microstructured and Specialty Optical Fibres, 84261M (25 April 2012); doi: 10.1117/12.924061
Show Author Affiliations
Barbara Wajnchold, Jagiellonian Univ. (Poland)
Michal Grabka, Jagiellonian Univ. (Poland)
Szymon Pustelny, Jagiellonian Univ. (Poland)
Wojciech Gawlik, Jagiellonian Univ. (Poland)
Pawel Mergo, Marie Curie-Sklodowska Univ. (Poland)

Published in SPIE Proceedings Vol. 8426:
Microstructured and Specialty Optical Fibres
Kyriacos Kalli; Alexis Mendez, Editor(s)

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