Optical Waveguide Gas Sensors.
Abstract
The discoveries of solid organic film coatings exhibiting color change reactions to specific vapors have made it possible to detect weak surface chemical reactions at the film-vapor interface by means of a multiple reflecting optical probe. A brief review of total multiple reflection and the application of two prototype devices built at NRL for the detection of low concentrations of ammonia and organophosphonate vapors is presented. Preliminary data characterizing both devices with regards to vapor response, reversibility, etc., will be discussed. Several design modification are suggested to improve our devices. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 13, 1983
- Accession Number
- ADA130629
Entities
People
- H. Wohltjen
- J. F. Giuliani
- N. L. Jarvis
Organizations
- United States Naval Research Laboratory