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Applied Optics

Applied Optics


  • Vol. 29, Iss. 4 — Feb. 1, 1990
  • pp: 608–614

Equivalent widths and band intensities of CO2

Mikihiko Hirono and Tsuyoshi Suda  »View Author Affiliations

Applied Optics, Vol. 29, Issue 4, pp. 608-614 (1990)

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Equivalent widths of the 2.7- and 4.3-μm CO2 bands have been measured at high pressures up to 50 atm. These equivalent widths can be expressed by the empirical equation of the form W = c u m P e n .. The line-by-line calculations for the equivalent width showed that the empirical values of Winters , [“ Line Shape in the Wing Beyond the Band Head of the 4.3 μm Band of CO2,” J. Quant. Spectrosc. Radiat. Transfer 4, 527– 537 ( 1964)] are also applicable to our high pressure experiments for the 4.3-μm CO2 band. Using the curve-of-growth method, the band intensities of the 5.2-, 9.4-, and 10.4-μm CO2 bands were estimated to be 0.0199 cm−2 atm−1 STP, 0.0340 cm−2 atm−1 STP and 0.0208 cm−2 atm−1 STP, respectively.

© 1990 Optical Society of America

Original Manuscript: May 2, 1989
Published: February 1, 1990

Mikihiko Hirono and Tsuyoshi Suda, "Equivalent widths and band intensities of CO2," Appl. Opt. 29, 608-614 (1990)

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