Abstract

A rapid-scan infrared spectrometer has been constructed and successfully applied to the study of short-lived intermediates produced by flash photolysis. A zinc-doped germanium semiconductor detector and a high-speed rotating Littrow mirror permit scan rates of 1000 cm⁻¹/100 μsee through the region 5000–650 cm⁻¹. Two transient species, chloroformic acid and CF₂, have been identified, and lough estimates of their lifetimes have been obtained, 50–70 μsec and about 2.5 msec, respectively. This is the first spectroscopic detection of chloroformic acid.

© 1965 Optical Society of America

Kinetic Spectroscopy in the Infrared: a Rapid-Scan Infrared Spectrometer

C. W. Hand, P. Z. Kaufmann, and R. M. Hexter
Appl. Opt. 5(7) 1097-1104 (1966)

Rapid Scan Flash Spectrophotometer with a Flying-Spot Light Source and Magnetic Storage

Józef Koszewski, Jan Jasny, and Zbigniew R. Grabowski
Appl. Opt. 7(11) 2178-2183 (1968)

Performance of a Commercial Rapid Scanning Spectrometer in Emission and Absorption

Harold J. Babrov and Richard H. Tourin
Appl. Opt. 7(11) 2171-2177 (1968)

A Simple Grating Spectrometer for the Infrared

Robert J. Bell and T. E. Gilmer
Appl. Opt. 4(2) 157-160 (1965)

A Multiple-Scan, Rapid-Scan Spectrograph for Electron Density Measurements in Transient Plasmas

R. A. Hill
Appl. Opt. 4(12) 1593-1595 (1965)