New type of light-guide sensor

Anatoly Babchenko; Josef S. Bodenheimer; Meir Nitzan

doi:10.1117/12.151114

13 August 1993 New type of light-guide sensor

Anatoly Babchenko, Josef S. Bodenheimer, Meir Nitzan

Proceedings Volume 1972, 8th Meeting on Optical Engineering in Israel: Optoelectronics and Applications in Industry and Medicine; (1993) https://doi.org/10.1117/12.151114
Event: 8th Meeting in Israel on Optical Engineering, 1992, Tel Aviv, Israel

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.

Citation Download Citation

Anatoly Babchenko, Josef S. Bodenheimer, and Meir Nitzan "New type of light-guide sensor", Proc. SPIE 1972, 8th Meeting on Optical Engineering in Israel: Optoelectronics and Applications in Industry and Medicine, (13 August 1993); https://doi.org/10.1117/12.151114

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