Evanescent wave infrared spectroscopy of liquids using silver halide optical fibers

S. Simhony, I. Schnitzer, A. Katzir, E. M. Kosower

Research output: Contribution to journalArticlepeer-review

Abstract

Infrared spectroscopic measurements of liquids were performed in an attenuated total internal reflection cell, using infrared transparent silver halide fibers. As an example, we studied evanescent wave absorption in water. In particular, we analyzed absorption dependence on various physical parameters, such as the length of the absorbing medium and the geometry of the beam at the fiber entrance and exit faces. Absorption peaks were easily traced and experimental results correlated well with theoretical calculations. These studies may lead to practical uses of fiberoptic-based evanescent wave spectroscopy.

Original languageEnglish
Pages (from-to)3732-3734
Number of pages3
JournalJournal of Applied Physics
Volume64
Issue number7
DOIs
StatePublished - 1988

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