Low concentration fluorescence sensing in suspended-core fibers

Erik P. Schartner; Heike Ebendorff-Heidepriem; Tanya M. Monro

doi:10.1117/12.886080

17 May 2011 Low concentration fluorescence sensing in suspended-core fibers

Erik P. Schartner, Heike Ebendorff-Heidepriem, Tanya M. Monro

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 77534Q (2011) https://doi.org/10.1117/12.886080
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

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

Citation Download Citation

Erik P. Schartner, Heike Ebendorff-Heidepriem, and Tanya M. Monro "Low concentration fluorescence sensing in suspended-core fibers", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77534Q (17 May 2011); https://doi.org/10.1117/12.886080

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