The nonlinear transmission change of a weak beam in the presence of an intense beam is measured and analyzed in various absorbing and scattering materials. Simultaneous contributions of different nonlinear processes are identified. Addition of the nonlinear refractive-index change and Rayleigh-wing scattering contributions yields particularly large transmission changes.
© 2001 Optical Society of America
(190.0190) Nonlinear optics : Nonlinear optics
(190.4400) Nonlinear optics : Nonlinear optics, materials
(190.5890) Nonlinear optics : Scattering, stimulated
(190.7070) Nonlinear optics : Two-wave mixing
M. Sylla and G. Rivoire, "Degenerate two-beam coupling polarization properties in nonlinear materials," J. Opt. Soc. Am. B 18, 1612-1619 (2001)