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Type: Conference paper
Title: Nanoliter-scale, regenerable ion sensor: Sensing with surface functionalized microstructured optical fiber
Author: Heng, S.
Nguyen, M.C.
Kostecki, R.
Monro, T.
Abell, A.
Citation: Optical Sensors 2013 / F. Baldini, J. Homola, R. A. Lieberman (eds.): Paper 877403
Publisher: SPIE
Issue Date: 2013
Series/Report no.: SPIE Proceedings ; 8774
ISBN: 9780819495761
ISSN: 0277-786X
Conference Name: Optical Sensors (2013 : Prague, Czech Republic)
Editor: Baldini, F.
Homola, J.
Lieberman, R.A.
Statement of
Sabrina Heng, Mai-Chi Nguyen, Roman Kostecki, Tanya M. Monro and Andrew D. Abell
Abstract: Femtosecond laser written Bragg gratings have been written in exposed-core microstructured optical fibers with core diameters ranging from 2.7 μm to 12.5 μm and can be spliced to conventional single mode fiber. Writing a Bragg grating on an open core fiber allows for real-time refractive index based sensing, with a view to multiplexed biosensing. Smaller core fibers are shown both experimentally and theoretically to provide a higher sensitivity. A 7.5 μm core diameter fiber is shown to provide a good compromise between sensitivity and practicality and was used for monitoring the deposition of polyelectrolyte layers, an important first step in developing a biosensor.
Rights: © 2013 SPIE
DOI: 10.1117/12.2016510
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