Fiber-optic-based evanescent field infrared spectroscopy using tunable diode lasers

I. Schnitzer*, A. Katzir, U. Schiessl, W. Riedel, M. Tacke

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

A simple fiber-optic chemical sensor which may be used to detect in-situ and in real time concentrations and chemical transformation of liquids and pastes is reported. The sensor, comprised of a tunable IR diode laser source and a cladding-free multimode IR fiber, operates on the principle of evanescent field absorption spectroscopy. The sensor's response is theoretically analyzed and experimentally verified.

Original languageEnglish
Pages (from-to)133-140
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume1048
DOIs
StatePublished - 2 Jun 1989

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