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A novel self-assembling crosslinking second harmonic generation nonlinear optical (SHG/NLO) film with high SHG coefficient (2×10-7 e.s,u.by IR dichroism) was prepared by morecular design and “in-situ poling and sol-gel process”.The content of the NLO chromophore (S)-(-)-1-(4)-mtrophenyl-2-pyrrolidinemethanol (NPP) is as high as 50 mol% since NPP molecules probably disperse in the film at a molecular level The film is rigid,uni form and transparent.This designed clathrate supermolecular structure was poved by IR,atomic force microseopv (AFM) and differential scanning calorimetry (DSC) detection.The title film exhibits a long-term temporal stability with 95% of the initial value of SHG coefficient maintained even after 20 d at 65℃(by UV spectroscopy)
A novel self-assembling hydrolysis second harmonic generation nonlinear optical (SHG / NLO) film with high SHG coefficient (2 × 10-7 es, u.by IR dichroism) was prepared by morecular design and “in-situ poling and sol- gel process. ”The content of the NLO chromophore (S) - (-) - 1- (4) -mtrophenyl-2- pyrrolidinemethanol (NPP) is as high as 50 mol% since NPP molecules probably disperse in the film at a molecular level The film is rigid, uni form and transparent. This designed clathrate supermolecular structure was poved by IR, atomic force microseopv (AFM) and differential scanning calorimetry (DSC) detection.The title film exhibits a long-term temporal stability with 95% of the initial value of SHG coefficient maintained even after 20 d at 65 ° C (by UV spectroscopy)