Preparation and Optical Properties of Au/BaTiO3 Nanoparticle Composite Thin Films
BaTiO3基Au纳米颗粒复合薄膜的制备及其光学性质研究

High doping level of Au nanoparticles was successfully incorporated into sol-gel derived amorphous BaTiO3 thin films, and the optical properties of samples were studied. The characteristics of samples were investigated by using XRD, TEM, absorption spectra, and OKE(Optical Kerr Effect) techniques. Red shift of SPR (surface plasma resonance) absorption along with the increase of treat temperature was observed by absorption spectra. Films exhibited a larger third nonlinear susceptibility x(3) and superfast response time in the nonlinear optical test.