Abstract

The total absorptance ∫A(ν)dν of the major infrared bands of carbon monoxide and methane has been measured as functions of absorber concentration w and equivalent pressure P_e over wide ranges of these variables. The experimental results are presented graphically, and empirical equations relating ∫A(ν)dν, w, and P_e are presented. By employing small values of w and large values of P_e, it has been possible to determine the band strengths or intensities ∫k(ν)dν for the fundamental band of carbon monoxide and for ν₂, ν₃, and ν₄ fundamentals of methane; the values obtained are compared with results of other investigators.

© 1962 Optical Society of America

Total Absorptance of Carbon Dioxide in the Infrared

Darrell E. Burch, David A. Gryvnak, and Dudley Williams
Appl. Opt. 1(6) 759-765 (1962)

Total Absorptance by Nitrous Oxide Bands in the Infrared

Darrell E. Burch and Dudley Williams
Appl. Opt. 1(4) 473-482 (1962)

Absorption Line Broadening in the Infrared

Darrell E. Burch, Edgar B. Singleton, and Dudley Williams
Appl. Opt. 1(3) 359-363 (1962)

Total Absorptance of Ammonia in the Infrared*

Wilbur L. France and Dudley Williams
J. Opt. Soc. Am. 56(1) 70-74 (1966)

Study of the Total Absorption near 4.7 μ by Two Samples of CO as their Total Pressures and CO Concentrations were Independently Varied*

David A. Gryvnak and John H. Shaw
J. Opt. Soc. Am. 52(5) 539-542 (1962)