Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
732947 | Optics & Laser Technology | 2010 | 5 Pages |
Abstract
The nonlinear absorption properties of two organometallic compounds, [(C2H5)4N]2[Cu(C3S5)2] (DCu1) and [(C4H9)4N]2[Cu(C3S5)2] (DCu2), have been investigated using an open-aperture Z-scan technique at 1064 nm with 40 ps pulse width and at 1053 nm with 18 ns pulse width. The reverse saturable absorption (RSA) which was observed in both samples with nanosecond pulse excitation was much larger than that observed with picosecond pulse excitation. The nonlinear absorption properties were analyzed theoretically by a five-level model. Optical limiting based on RSA was performed and limiting thresholds were evaluated for both samples under three conditions. DCu1 exhibited the better limiting characteristics because of its stronger RSA response.
Related Topics
Physical Sciences and Engineering
Engineering
Electrical and Electronic Engineering
Authors
Heliang Fan, Xinqiang Wang, Quan Ren, Xian Zhao, Guanghui Zhang, Jingwei Chen, Dong Xu, Gang Yu, Zhihua Sun,