Nanocomposites obtained by embedding of conjugated polymers in porous silicon and silica

Porous silicon and porous silica matrices are filled up by conjugated polymers in order to obtain nanocomposite with enhanced third order optical nonlinearity. The active component is either PDA-TS thermally polymerized in situ or PT12 electropolymerized in porous silicon. The first measurements of the nonlinear properties of these nanocomposites give evidence of a significant increase of the nonlinear refractive index with respect to the standard optical materials. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)