Line Width Determination in the 9.4-micro and 10.4-micro Bands of CO(2) Using a CO(2) Laser

A CO(2) laser was used to measure the ratio of line strength to line width for a great number of rotational lines in the 9.4-micro and 10.4-,micro bands of CO(2) The laser used for this purpose incorporated a grating, which allowed the tuning of the laser to about 100 different rotation lines. By assuming a given value of the line strength of the line P(20) in each of the two bands studied, the line width was calculated up to a rotational quantum number J = 40. These results are compared with other values recently reported in the literature.