We formed composite materials with geometries approximating that of the Bruggeman model by filling the pores of a porous glass with optically nonlinear fluids spanning a range of linear refractive indices. The effective linear refractive indices of the composites were measured with a Mach–Zehnder interferometer. The effective nonlinear refractive indices were determined by the Z-scan method. In both cases good agreement between the experimental data and theoretical predictions was found.
© 1997 Optical Society of America
Russell J. Gehr, George L. Fischer, and Robert W. Boyd, "Nonlinear-optical response of porous-glass-based composite materials," J. Opt. Soc. Am. B 14, 2310-2314 (1997)