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
Language
- eng