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Proceedings Paper

Interferometric biochemical and chemical sensors
Author(s): Guenter Gauglitz; Andreas Brecht; Gerolf Kraus
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Paper Abstract

Interferometric principles have gained wide acceptance in the field of chemical and biochemical sensing. Reflectometric interference spectrometry sensors using white light multiple reflections at thin layers, structures of polymers, or monolayers of biochemicals are discussed in a survey. These are compared to other techniques, especially methods using surface plasmon resonance and grating couplers. Applications in the area of environmental monitoring in public safety are given, demonstrating the results for halogenated hydrocarbons in air and water as well as pesticides in ground water. Calibration curves, limits of decision, of detection, and of determination are specified and discussed with respect to EU limits. The application of multivariate data analysis is considered including artificial neuronal networks for multisensor systems and referencing in the case of gas sensors.

Paper Details

Date Published: 29 September 1995
PDF: 8 pages
Proc. SPIE 2508, Chemical, Biochemical, and Environmental Fiber Sensors VII, (29 September 1995); doi: 10.1117/12.221756
Show Author Affiliations
Guenter Gauglitz, Univ. of Tuebingen (Germany)
Andreas Brecht, Univ. of Tuebingen (Germany)
Gerolf Kraus, Univ. of Tuebingen (Germany)

Published in SPIE Proceedings Vol. 2508:
Chemical, Biochemical, and Environmental Fiber Sensors VII
Annamaria V. Scheggi, Editor(s)

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