新型有机非线性光学材料二苯基戊二烯酮衍生物的初步研究

制备了１８种二苯基戊二烯酮衍生物的粉末晶体样品，对紫外可见光谱和光声光谱的测定表明，它们的最大紫外吸收波长λｍａｘ在３２０～３８０ｎｍ之间，截止吸收波长λｃｕｔ－ｏｆ的范围为４５０～５１０ｎｍ，在蓝光波段有良好的透光性，粉末晶体的倍频系数ＳＨＧ为６～１９（Ｉ２ω／Ｉ２ωｕｒｅａ），比二苯甲酮和查尔酮的衍生物的倍频性能更好，表明其在低功率激光方面的良好应用前景。

Preliminary Study of New Organic Nonlinear Optical Materials of Cinnamylidene acetophenone Derivatives

It reports a series of new optical organic molecules of cinnamylidene acetophenone derivatives. We have synthesized eighteen compounds, and measured their powder second harmonic generation (SHG data 6~19 I2ω/I2ω urea), λ cut-off (450~510 nm) and λ max (320~380 nm). This series of molecules are found to have larger nonlinearity and shorter cut off wavelength than the chalcon derivatives. The experimental results indicate a promising application in low power lasers.