甲基砜基二苯乙烯衍生物的非线性光学特性研究

The Syntheses and Studies on the Nonlinear Optical Properties of Methylsulfonyl Substituted Stilbene Derivatives

用非线性光学活性基团理论计算了甲基砚基二苯乙烯衍生物的微观二阶非线性光学极化率，并且测定了其粉末倍频强度．结果表明此类分子具有较好的二次非线性光学特性，有可能在其中找到有用的有机非线性光学材料．

Abstract The microscopic second-order nonlinear optical susceptibilities of methylsulfonyl substisubstituted stilbene derivatives were calculated with nonlinear optical active group theory. The studies on the powder second harmonic generation(SHG) effects and spectroscopic properties revealed that some of these compounds had more intensive powder efficiency of SHG than inorganic crystals and the transparency and crystallinity were superior to other nonlinear optical stilbene derivatives.