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Proceedings Paper

Gas sensor based on capillary optical fiber
Author(s): Robert J. Brunner; Juraj Doupovec; J. Zahora; Frank Kvasnik
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Paper Abstract

The principle and application of evanescent-wave chemical sensor is presented. The used capillary waveguide structure ensures good interaction between evanescent field of guided mode and measurand. Quasi monomode state can be easily achieved, which ensures the monoexponential response corresponding to the Lambert-Beer law. Good correspondence between calculated dispersion characteristics and measured cut-off was observed. The sensitive polymeric layer was used to achieve the sensitivity to gaseous NH3.

Paper Details

Date Published: 14 July 1999
PDF: 9 pages
Proc. SPIE 3820, 11th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics, (14 July 1999); doi: 10.1117/12.353059
Show Author Affiliations
Robert J. Brunner, Institute of Physics (United States)
Juraj Doupovec, Institute of Physics (Slovak Republic)
J. Zahora, Institute of Physics (Slovak Republic)
Frank Kvasnik, Univ. of Manchester Institute of Science and Technology (United Kingdom)


Published in SPIE Proceedings Vol. 3820:
11th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics
Miroslav Hrabovsky; Anton Strba; Waclaw Urbanczyk, Editor(s)

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