Integrated Optical Attenuated Total Reflection Spectrometry of Aqueous Superstrates Using Prism-Coupled Polymer Waveguides

S. S. Saavedra; W. M. Reichert

doi:10.1021/ac00219a019

Integrated Optical Attenuated Total Reflection Spectrometry of Aqueous Superstrates Using Prism-Coupled Polymer Waveguides

S. S. Saavedra, W. M. Reichert

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

Attenuated total reflection (ATR) spectrometry of aqueous solutions in contact with polystyrene Integrated optical waveguides has been investigated. The mode-dependent absorption of evanescent energy by fluorescein solutions adjacent to the waveguide surface was measured and compared to theoretical predictions based on a ray optics approach. Although enhanced sensitivity was observed with increasing mode number, the sensitivity for the highest order mode was less than that predicted by theory.

Original language	English (US)
Pages (from-to)	2251-2256
Number of pages	6
Journal	Analytical Chemistry
Volume	62
Issue number	20
DOIs	https://doi.org/10.1021/ac00219a019
State	Published - Jan 15 1990
Externally published	Yes

ASJC Scopus subject areas

Analytical Chemistry

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abstract = "Attenuated total reflection (ATR) spectrometry of aqueous solutions in contact with polystyrene Integrated optical waveguides has been investigated. The mode-dependent absorption of evanescent energy by fluorescein solutions adjacent to the waveguide surface was measured and compared to theoretical predictions based on a ray optics approach. Although enhanced sensitivity was observed with increasing mode number, the sensitivity for the highest order mode was less than that predicted by theory.",

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N2 - Attenuated total reflection (ATR) spectrometry of aqueous solutions in contact with polystyrene Integrated optical waveguides has been investigated. The mode-dependent absorption of evanescent energy by fluorescein solutions adjacent to the waveguide surface was measured and compared to theoretical predictions based on a ray optics approach. Although enhanced sensitivity was observed with increasing mode number, the sensitivity for the highest order mode was less than that predicted by theory.

AB - Attenuated total reflection (ATR) spectrometry of aqueous solutions in contact with polystyrene Integrated optical waveguides has been investigated. The mode-dependent absorption of evanescent energy by fluorescein solutions adjacent to the waveguide surface was measured and compared to theoretical predictions based on a ray optics approach. Although enhanced sensitivity was observed with increasing mode number, the sensitivity for the highest order mode was less than that predicted by theory.

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Integrated Optical Attenuated Total Reflection Spectrometry of Aqueous Superstrates Using Prism-Coupled Polymer Waveguides

Abstract

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