| Popis: |
A kind of silane coupling agent KH560-based organic / inorganic hybrid electro-optic(E-O) material was synthesized by Sol-Gel method.The reaction mechanism of hydrolysis and condensation of KH560 in the case of hydrochloric acid as a catalyst was analysed.Then the surface morphology,refractive index and E-O properties of the thin films were characterized by means of atomic force microscopy(AFM),ellipsometry,and simple reflection method.At last,the poled polymer films with good shape and alterable refractive index were obtained.The E-O coefficient was measured to be 3.5 pm/V @1 310 nm wavelengh based on the simple reflection method.According to the flexibility of this material,the structure of the strip-loaded waveguide was designed.And the two-dimensional and three-dimensional light fields were also simulated by the Opti-BPM software.After exploring the processing technology,the fabrication of the waveguide with strip-loaded structure was completed.Finally the near-field images of this waveguide were obtained. |
