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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 59, Iss. 1 — Jan. 1, 1969
  • pp: 28–33

Infrared Absorptance of Carbon Monoxide at Low Temperatures

GARY M. HOOVER and DUDLEY WILLIAMS  »View Author Affiliations


JOSA, Vol. 59, Issue 1, pp. 28-33 (1969)
http://dx.doi.org/10.1364/JOSA.59.000028


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Abstract

The strengths and half-widths of lines in the R branch of the CO fundamental band at temperatures as low as 113 K have been determined from equivalent-width measurements in the linear and square-root regions of the curve of growth. For all temperatures, the observed line strengths are in excellent agreement with line strengths calculated on the basis of the Herman-Wallis expression. However, at the lowest temperatures the observed half-widths differ considerably from the values calculated on the basis of the usual extrapolations of room-temperature data; the half-widths of lines near the band center are much larger than the calculated half-widths, and the half-widths of lines in the band wing are apparently considerably smaller than the calculated half-widths.

Citation
GARY M. HOOVER and DUDLEY WILLIAMS, "Infrared Absorptance of Carbon Monoxide at Low Temperatures," J. Opt. Soc. Am. 59, 28-33 (1969)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-59-1-28

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