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Proceedings Paper

Monitoring of alkane vapor concentrations with polyimide lightguides
Author(s): R. P. Podgorsek; Hilmar Franke
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Paper Abstract

Planar polyimide light guides can be used for the optical detection of various vapor concentrations. Therefore the birefringence of the light guide is monitored as a function of the actual vapor pressure. Using this principal several vapor concentrations of n-heptane and n- octane have been determined. Similar dynamic behavior can be observed for both components only differing in time constants. Furthermore the detection of n-heptane in a mixture with iso- octane can be realized. The waveguide sensor shows a sensitivity only to n-heptane and not so iso-octane vapors. The determination of the n-heptane concentration is not affected by the presence of iso-octane.

Paper Details

Date Published: 25 August 1994
PDF: 7 pages
Proc. SPIE 2212, Linear and Nonlinear Integrated Optics, (25 August 1994); doi: 10.1117/12.185153
Show Author Affiliations
R. P. Podgorsek, Univ. Duisburg (Germany)
Hilmar Franke, Univ. Duisburg (Germany)

Published in SPIE Proceedings Vol. 2212:
Linear and Nonlinear Integrated Optics
Giancarlo C. Righini; David Yevick, Editor(s)

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