Integrated optical attenuated total reflection spectrometry of aqueous superstrates using prism-coupled polymer waveguides.

Journal Article

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.

Full Text

Duke Authors

Cited Authors

  • Saavedra, SS; Reichert, WM

Published Date

  • October 1990

Published In

Volume / Issue

  • 62 / 20

Start / End Page

  • 2251 - 2256

PubMed ID

  • 2268054

Pubmed Central ID

  • 2268054

Electronic International Standard Serial Number (EISSN)

  • 1520-6882

International Standard Serial Number (ISSN)

  • 0003-2700

Digital Object Identifier (DOI)

  • 10.1021/ac00219a019


  • eng