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Sensors 2011, 11(3), 2961-2971; doi:10.3390/s110302961

Driving down the Detection Limit in Microstructured Fiber‑Based Chemical Dip Sensors

Institute for Photonics & Advanced Sensing, School of Chemistry & Physics, University of Adelaide, Adelaide, SA 5005, Australia
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Received: 25 November 2010 / Revised: 17 January 2011 / Accepted: 21 February 2011 / Published: 4 March 2011
(This article belongs to the Section Chemical Sensors)
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Abstract

We present improvements to fluorescence sensing in soft-glass 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. View Full-Text
Keywords: soft glass; dip sensing; microstructured optical fiber; quantum dots soft glass; dip sensing; microstructured optical fiber; quantum dots
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Schartner, E.P.; Ebendorff-Heidepriem, H.; Warren-Smith, S.C.; White, R.T.; Monro, T.M. Driving down the Detection Limit in Microstructured Fiber‑Based Chemical Dip Sensors. Sensors 2011, 11, 2961-2971.

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