Self- and foreign-gas broadening of ethane lines determined from diode laser measurements at 12 μm

Abstract Self- and foreign-gas broadening of ethane lines have been measured in the v 9 band at 12 μm. A coefficient of 0.125 cm -1 -atm -1 was determined for self broadening. Foreign-gas broadening coefficients determined are (in cm -1 -atm -1 ) 0.090 for N 2 , 0.069 for He, 0.068 for Ar, 0.108 for H 2 , and 0.096 for CH 4 . Results are given for a sample temperature of 296 K.