The Shapes of Collision-Broadened CO2 Lines
PHILCO-FORD CORP NEWPORT BEACH CA AERONUTRONIC DIV
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The shapes of the extreme wings of self-broadened CO2 lines have been investigated in three spectral regions near 7000, 3800, and 2400cm. Absorption measurements have been made on the high wavenumber sides of band heads where much of the absorption by samples at a few atm is due to the extreme wings of strong lines whose centers occur below the band heads. Considerable new information has been obtained about the shapes of self-broadened CO2 lines as well as CO2 lines broadened by N2, O2, A, He, and H2. Beyond a few reciprocal cm from the line centers all the lines absorb considerably less than Lorentz- shaped lines having the same half-widths. The deviation from the Lorentz shape decreases with increasing wavenumber in going from one of the three spectral regions to the next.
- Atomic and Molecular Physics and Spectroscopy