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合成了一种新的有机非线性光学(NLO)材料1-(芘-1-基)-3-(4-甲氧基苯基)丙烯酮(PMPAK),通过1 H NMR、IR、HR-MS和元素分析表征其结构.以Nd∶ YAG-Laser System作为光源,激光波长450 nm,脉冲宽度4 ns(FWHM),采用4f相位相干成像技术测定了PMPAK的三阶NLO性质并确定了相关参数:非线性折射率n2=-1.84 ×10-16 m2/W,非线性吸收系数β=2.53 ×10-9 m/W,非线性极化率x(3)=1.137×10-10 esu.

参考文献

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