Abstract

Submicrogram quantities of organic phosphorous compounds in air were monitored by frustrated multiple internal reflectance (FMIR) spectroscopy. Vapor detection at these concentrations required the use of adsorptive films on the germanium FMIR cells. Of the various materials tried, platinum films gave the highest sensitivity. The effects of film thickness, temperature and organophosphorus compound concentrations were investigated. Adsorption was found to be reversible, permitting repeated use of detector probes. At optimum thickness and temperature 0.1 μg of dimethylmethylphosphonate per liter of air is detectable in 30 sec.

Dielectric compound parabolic concentrating solar collector with a frustrated total internal reflection absorber

John R. Hull
Appl. Opt. 28(1) 157-162 (1989)

Application of frustrated total internal reflection devices to analytical laser spectroscopy

David C. S. Beddows, Ben C. Griffiths, Ota Samek, and Helmut H. Telle
Appl. Opt. 42(30) 6006-6015 (2003)

Infrared Modulation by Means of Frustrated Total Internal Reflection

Robert W. Astheimer, Gerald Falbel, and Sheldon Minkowitz
Appl. Opt. 5(1) 87-91 (1966)

A Laser Output Coupler Using Frustrated Total Internal Reflection

Earl L. Steele, Walter C. Davis, and Robert L. Treuthart
Appl. Opt. 5(1) 5-8 (1966)

Interference-enhanced frustrated total internal reflection

John R. Hull and Malvern K. Iles
J. Opt. Soc. Am. 70(1) 17-28 (1980)