中文摘要：

利用纳秒脉冲激光下的z扫描方法对两种新型卟啉衍生物在450nm-490nm范围内的反饱和吸收进行了研究.通过与四苯基卟啉的比较发现,在Soret和Q吸收带之间,两种新型卟啉衍生物都具有大的反饱和吸收.采用五能级模型对实验结果进行了分析,比较了在不同波长范围内各个样品的优势.实验结果表明,在450nm-490nm范围内,两种新型的卟啉衍生物有着比四苯基卟啉更好的光限制应用前景.

英文摘要：

We report here the experimental observations on the nature of the reverse saturable absorption over the visible region（450—470 nm） for two novel porphyrin-like complexes and tetraphenylporphyrin using open aperture z-scan. They all exist large reverse saturable absorption between the Soret and Q bands. A theoretical study has been carried out using 5-level models. The two novel samples have better optical limiting than tetraphenylporphyrin.