Investigation of collision-induced fluorescence in D2:Ar and D2:HD:Ar mixtures at 200 k

The collision-induced fundamental-band fluorescence from vibrationally-excited D2 in high-pressure mixtures of D2 and Ar and D2, HD and Ar has been investigated. Fluorescence intensity and vibrational lifetime have been measured at 200 K as a function of pressure and mixture ratio. The results indicate that a D2:HD:Ar mixture at reduced temperature is an attractive candidate medium for an optically-pumped collision-induced-dipole laser.