通过“原位极化/溶胶凝胶化过程”,设计并制备了一种高性能的自组装的交联二阶非线性光学(SHG/NLO)膜,其SHG系数d_33为2×10～7e.s.u.(红外二向色性法).由于非线性发色团N-(4-硝基苯基)-L-脯胺醇(NPP)以分子水平分散在膜中,所以NPP含量在高达50%摩尔比时仍不分相析出,呈均匀、透明的硬膜.采用红外(IR)、原子力显微镜(AFM)及示差扫描量热(DSC)等方法对所设计的“笼”包容NPP的超分子结构进行了表征.紫外光谱法研究表明,题述膜的SHG光学系数d_33在65℃,20d仍能保持95%的初始值. A self-assembled cross-linked second-order nonlinear optical (SHG / NLO) film was designed and prepared by in situ polarization / sol-gel process. The SHG coefficient d_33 was 2 × 10 ~ 7e .su (Infrared Dichroism Method) Since the non-linear chromophore N- (4-nitrophenyl) -L-prolinitol (NPP) is dispersed in the film at the molecular level, the NPP content is as high as 50 % Molar ratio is still not phase precipitation, was uniform, transparent hard film.Using infrared (IR), atomic force microscopy (AFM) and differential scanning calorimetry (DSC) and other methods on the design of the “cage” NPP super Molecular structure was characterized.Ultraviolet spectroscopy study showed that the title film SHG optical coefficient d_33 at 65 ℃, 20d still maintain the initial value of 95%.