Abstract
A high resolution interferometer in the Michelson configuration has been designed and constructed for the purpose of studying the optical properties of gases in either the symmetric or asymmetric mode of operation. The performance of this instrument in the 20–220 cm−1 spectral region is demonstrated by measurements on a few simple molecules. A working resolution of 0.05 cm−1 is verified by observation of the isotopic splitting in HCl and by the resolution of several doublets in the H2O spectrum. Applications of the asymmetric mode to line strength measurements and to determination of partial pressures of absorbing constituents in gas mixtures are discussed.
© 1971 Optical Society of America
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