中文摘要：

文中介绍了一种新型金属铟酞菁酯化合物的合成方法。为了研究该化合物的非线性光学性质,在532 nm波长下,分别使用皮秒和纳秒脉冲对样品进行了Z扫描测试。实验结果表明该样品在皮秒和纳秒时域都有很强的反饱和吸收以及非线性正折射。对Z扫描实验数据进行数值模拟分别得到样品在皮秒和纳秒脉冲作用下等效的三阶非线性吸收系数和三阶折射率:βps=4.1×10-11m/W,γps=4.5×10-19m2/W以及βps=5.1×10-9m/W,γps=1.5×10-16m2/W。分析讨论了激发态能及对该化合物非线性光学性质的影响,并使用纳秒脉冲激光对样品进行了光限幅测试,在T/T0=0.5时,阈值为2.0 J/cm2,实验结果表明该样品拥有良好的光限幅性能。

英文摘要：

The synthesis method of a new metalphthalocyanine compound was introduced. Optical nonlinearity of the sample solution in both picoseconds and nanoseconds regimes at 532 nm wavelength was investigated by Z -scan technique. Strong reserve saturable absorption and positive nonlinear refraction were observed from the experiments. The equivalent nonlinear absorptive coefficient and nonlinear refractive index were obtained from the experiment data via computer simulations, which were:βps=4.1×10-11 m/W,γps=4.5×10-19 m2/W and βps=5.1×10-9 m/W,γps=1.5×10-16m2/W. The mechanism of reverse saturable absorption and positive nonlinear refraction showed in Z-scan experiment was illustrated, excited state optical nonlinearity was considered as the origin of the sample′s nonlinear optical property. Excited singlet and triplet energy levels play the key role in picoseconds and nanoseconds regimes, respectively. Optical limiting experiment was performed using nanoseconds pulse laser and results showed that when T/T0=0.5, the threshold value was 2.0 J/cm2. The results of optical limiting experiment showed that the sample has novel optical limiting performance.