Abstract

Transmission spectra of several samples of pure CO2 have been obtained in the 8000–10 000 cm−1 (1–1.25 μ) region. Sample path lengths were varied from 16.5 to 933 m, and pressures from approximately 1 to 14.6 atm. Each of the important absorption bands has been identified and its strength determined. The average half-width, at one atmosphere pressure, of lines P8–P32 of the 0203 band has been found to be approximately 0.092 cm−1, with some evidence of a slight decrease with increasing J. Several replotted spectral curves are included, as are tables of the integrated absorptance.

© 1968 Optical Society of America

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