PRESSURE BROADENING OF WATER BETWEEN 80 K AND 600 K

Author Institution: Department of Physics., The Ohio State University; Department of Physics, North Carolina Central University; Depatment of Physics, North Carolina Central UniversityThe results of recent experiments of water pressure broadened by $O_{2}$, $N_{2}$, He, and $H_{2}$ will be presented. The $3_{1,3}-2_{20}$ and $4_{1,4}-3_{2,1}$ transitions of water ($H_{2}O$) were studied between 80 K and 600 K. Results for the temperature dependence of the pressure broadening parameters are compared with predictions from theory and with previous experimental results. Low temperature measurements were made in a collisionally cooled $cell^{1}$ with a continuously variable temperature between 80 K and 300 K. Static measurements were made in a quartz cell enclosed in an oven with a continuously variable temperature between 80 K and 600 K. $^{1}$ T.M. Goyette and F.C. De Lucia, J.Mol.Spectrose.143, 346(1990)."