Tin diselenide-based saturable absorbers for eye-safe pulse lasers. (10th April 2019)

• Record Type: Journal Article
• Authors: Wang, Mengxia; Wang, Zhengping; Xu, Xinguang; Duan, Sihou; Du, Chenlin
• Is Part Of: Nanotechnology. Volume 30:Number 26(2019)
• Publication Date: 2019-04-10
• Subjects: SnSe2 -- eye-safe -- passively Q-switched -- solid-state laser; Nanotechnology -- Periodicals; Nanotechnology -- Periodicals; Nanotechnology; Publications périodiques; Nanotechnologies; Periodicals; 620.5
• DOI: 10.1088/1361-6528/ab1115
• Languages: English
• ISSNs: 0957-4484

Abstract

Abstract: Eye-safe pulse lasers have attracted increasing attention due to their potential wide application in many fields. However, optical modulators with excellent nonlinear optical absorption properties in the range of 1.4–2.1 μ m are still very scarce. In this study, tin diselenide (SnSe2 ), a newly-developed 2D layered semiconductor material with facile processability and low cost, was investigated. The nonlinear optical response of SnSe2 was investigated using the open aperture Z-scan method at 1500 and 1800 nm. Using SnSe2 as the saturable absorber, a passive Q-switched solid-state laser was realized at 1.3 and 1.9 μ m for the first time. This study proved SnSe2 to be an effective optical modulating material for the eye-safe waveband.