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Proceedings Paper

Low concentration fluorescence sensing in suspended-core fibers
Author(s): Erik P. Schartner; Heike Ebendorff-Heidepriem; Tanya M. Monro
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Paper Abstract

We present improvements to fluorescence sensing in microstructured optical fibers that result in significantly improved sensitivity relative to previously published results. Concentrations of CdSe quantum dots down to 10 pM levels have been demonstrated. We show that the primary limitation to the sensitivity of these systems is the intrinsic fluorescence of the glass itself. We investigate alternative architectures for improved sensitivity by separating the excitation and capture in to separate cores within a single fiber

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77534Q (17 May 2011); doi: 10.1117/12.886080
Show Author Affiliations
Erik P. Schartner, The Univ. of Adelaide (Australia)
Heike Ebendorff-Heidepriem, The Univ. of Adelaide (Australia)
Tanya M. Monro, The Univ. of Adelaide (Australia)


Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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