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Proceedings Paper

Fluorescence decay time measurement - a new optical sensing scheme
Author(s): Sonja Draxler; Max E. Lippitsch
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Paper Abstract

Optical sensors often suffer from poor long-term stability. This drawback can be overcome by using fluorescence decay-time measurement as the sensing principle. In this way calibration- free chemical sensors can be developed. The sensing scheme has been used so far mainly in connection with dynamic quenching, for example in oxygen sensors. We have succeeded in extending it to ground-state indicator-analyte reactions, thus obtaining stable optical sensors for decay-time sensing of various analytes.

Paper Details

Date Published: 15 February 1994
PDF: 7 pages
Proc. SPIE 2085, Biochemical and Medical Sensors, (15 February 1994); doi: 10.1117/12.168745
Show Author Affiliations
Sonja Draxler, Karl-Franzens-Univ. Graz (Austria)
Max E. Lippitsch, Karl-Franzens-Univ. Graz (Austria)


Published in SPIE Proceedings Vol. 2085:
Biochemical and Medical Sensors

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