Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7926738 | Optics Communications | 2018 | 5 Pages |
Abstract
Black phosphorus (BP), is the most thermodynamically stable allotrope of phosphorus, the narrow direct band gap and the strong light-matter interaction make BP a promising nonlinear optical (NLO) nano-material. In this paper, we use the open aperture Z- scan method to measure the NLO property of BP dispersion. Saturable absorption was observed in the BP material through the excitation of Ti: sapphire laser at 800 Â nm. Three different excitation pulse duration (100 Â fs, 1 Â ps and 10 Â ps) were used in the experiments, and BP exhibited different NLO performance. The results show that nonlinear absorption coefficient and figure of merit of BP nanosheets are proportional to the pulse duration while saturable intensity is opposite to pulse duration.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Shana Tang, Zhiliang He, Guowen Liang, Si Chen, Yanqi Ge, David K. Sang, Jianxin Lu, Shunbin Lu, Qiao Wen, Han Zhang,