Stimulated Rayleigh-wing scattering is studied here in various liquids excited with a Bessel beam that allows a complete spatial separation between the transmitted exciting light and the scattered light. The results show that a large Stokes spectral band displaying substructures is obtained in the absence of self-focusing, cross-focusing, self-phase modulation, and cross-phase modulation. An interpretation is proposed based on the role of cascade Stokes–anti-Stokes coupled scattering processes.
© 1999 Optical Society of America
Règis Barillè, Suren Sogomonian, and Geneviève Rivoire, "Spatial and spectral properties of stimulated Rayleigh-wing scattering pumped with a Bessel beam:role of four-photon parametric processes," J. Opt. Soc. Am. B 16, 1139-1145 (1999)