High-resolution cw CARS spectra of liquid nitrogen dissolved in liquefied Ar, Kr, O_2, CO, and CH_4

The high-resolution cw CARS technique has revealed solvent-induced alterations in linewidth and position of the 2326.5-cm(-1) Raman line of liquid, nitrogen, which becomes strongly broadened when Kr or CH(4) is added and is almost unaltered in solutions with CO and O(2). The interpretation is given in terms of motional narrowing and vibrational dephasing theory.