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Proceedings Paper

New type of light-guide sensor
Author(s): Anatoly Babchenko; Josef S. Bodenheimer; Meir Nitzan
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Paper Abstract

We present a new type of intensity-modulated sensor based on a coated lightguide. Using a physical model of the coated lightguide the output light intensity was computed as a function of the reflection and transmission complex coefficients at the substrate-film and film-ambient interface. Based on these theoretical results an experimental setup for measuring various parameters of a liquid was constructed. The results demonstrate the dependence of the output signals on the characteristics of the substrate-film-ambient system. In particular the output signal increases for some incidence angles as the refractive index of the ambient medium increases.

Paper Details

Date Published: 13 August 1993
PDF: 8 pages
Proc. SPIE 1972, 8th Meeting on Optical Engineering in Israel: Optoelectronics and Applications in Industry and Medicine, (13 August 1993); doi: 10.1117/12.151114
Show Author Affiliations
Anatoly Babchenko, Jerusalem College of Technology (Israel)
Josef S. Bodenheimer, Jerusalem College of Technology (Israel)
Meir Nitzan, Jerusalem College of Technology (Israel)


Published in SPIE Proceedings Vol. 1972:
8th Meeting on Optical Engineering in Israel: Optoelectronics and Applications in Industry and Medicine

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