CALCULATION OF LINEWIDTH OF N2O

The linewidths for the 2224 cm-1 N2O band are calculated using Anderson's theory. The mean value of the half-width is found to be 0.085 cm-1 atm-1 for self-broadened N2O and 0.072 cm-1 atm-1 for N2-broadened one at 300°K, respectively, by comparing the calculated widths with the measured ones. Values of the spectral absorptance computed using the quasi-random band model and a half-width of 0.072 cm-1 atm-1 at 300°K are in good agreement with the measurements of absorptance. The value of the self-broadening coefficient is also compared with the experiment. © 1969, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.