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Proceedings Paper

Polymer Thin Film Waveguide Sensors: Characterization Of Scattered Light Intensity At The Waveguide Surface
Author(s): J. T. Ives; W. M. Reichert; J. D. Andrade
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Paper Abstract

The evanescent and scattered light from poly(styrene) thin film waveguides are being investigated to evaluate the potential use of integrated optic waveguides as sensors. A fiber optic system is described for measuring the light intensity of different waveguide modes in two directions; perpendicular to the waveguide streak and parallel to the streak as a measure of decay. Rayleigh and poly(styrene) Raman scattered light are used as intensity indicators and the advantages and disadvantages of each are discussed. Profiles of Raman scattered light across the waveguide streak are shown as a function of position along the waveguide. Decay measurements of four waveguide modes along a single waveguide are divided into three regions with different rates of decay and possible causes. These results show that the excitation field along the surface of 10 waveguides is predominantly scattered light rather than surface localized evanescent light.

Paper Details

Date Published: 19 January 1988
PDF: 6 pages
Proc. SPIE 0822, Raman and Luminescence Spectroscopy in Technology, (19 January 1988); doi: 10.1117/12.941952
Show Author Affiliations
J. T. Ives, University of Utah (United States)
W. M. Reichert, University of Utah (United States)
J. D. Andrade, University of Utah (United States)

Published in SPIE Proceedings Vol. 0822:
Raman and Luminescence Spectroscopy in Technology
Fran Adar; James E. Griffiths, Editor(s)

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