Observation of spatial cross-phase-modulation in DMSO

摘要

We report the observation of conical emission induced by cross-phase-modulation when a strong beam copropagates with a weak beam through dimethylsulfoxide. Laser beams at 1064 nm and 597 nm, in the transparency window of the material, were used. The phenomenon is understood in terms of a nonlinear spatial modulation of the refractive index.