Nonlinear optical properties characterization Nonlinear refractive index of carbon nanotubes Near-resonance spectrally resolved nonlinear refractive index characterization of single-chirality carbon nanotubes Second-order processes in organic thin films Characterization of the second-order nonlinear properties of evaporated organic thin films Third-order effects in germanium thin films Characterization of the third-order nonlinear properties of amorphous germanium thin films Second-order properties of ScAlN Characterization of the nonlinear properties of epitaxially grown ScAlN Nonlinear photonic devices design Optical bistability Design and fabrication of optically bistable devices