TRANSIENT STIMULATED ROTATIONAL AND VIBRATIONAL RAMAN SCATTERING IN GASES

Abstract
Using a mode‐locked ruby laser, stimulated rotational and vibrational Raman scattering has been observed in a variety of high‐pressure gases, where previously no stimulated scattering has been reported. Pulse energy conversion efficiencies as high as 70% have been obtained. Evidence for a strong optical Stark effect is seen in the gases producing rotational scattering. Self‐focusing in a collimated beam is observed in N2O and CO2.