Nonlinear optical and optical limiting properties of phthalocyanines in solution and thin films of PMMA at 633 nm studied using a cw laser
Nonlinear optical and optical limiting properties of phthalocyanines in solution and thin films of PMMA at 633 nm studied using a cw laser
复制标题
DOI：
10.1016/j.matlet.2007.02.034
复制
发表时间：
2007-09
影响因子：
3
通讯作者：
S. Mathews;S. C. Kumar;L. Giribabu;Venugopal Rao Soma
中科院分区：
文献类型：
--
作者：
S. Mathews;S. C. Kumar;L. Giribabu;Venugopal Rao Soma
我们提出了我们的非线性光学（NLO）和光限幅性能的四叔丁基酞菁和四叔丁基酞菁锌在633 nm使用连续波激光研究的结果。我们已经评估了三阶非线性的符号和大小，从闭孔Z扫描数据，而非线性吸收特性进行了评估，使用开放的孔径数据。我们已经观察到低功率的光限幅，具有低的限制阈值，在这两个样品的非线性折射的基础上。我们还提出了在聚甲基丙烯酸甲酯（PMMA）中掺杂相同的染料的非线性光学性能的结果。这些研究表明，这两种酞菁是潜在的候选人低功率光限幅应用。
We present our results on nonlinear optical (NLO) and optical limiting properties of Tetra tert-butyl phthalocyanine and Zinc tetra tert-butyl phthalocyanine studied at 633 nm using a continuous wave laser. We have evaluated the sign and magnitude of the third-order nonlinearity from the closed aperture Z-scan data while the nonlinear absorption properties were assessed using the open aperture data. We have observed low power optical limiting, with low limiting thresholds, based on nonlinear refraction in both the samples. We also present results on the NLO properties of the same dyes doped in Polymethylmethacrylate (PMMA). These studies indicate that both the phthalocyanines are potential candidates for low power optical limiting applications.