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 Optical bistability Design and fabrication of optically bistable devices Nonlinear integrated photonics with organic films Design, fabrication and testing of strip-loaded waveguides on organic thin films with large second-order nonlinearities.