4.6 Article

Tin diselenide-based saturable absorbers for eye-safe pulse lasers

期刊

NANOTECHNOLOGY
卷 30, 期 26, 页码 -

出版社

IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/ab1115

关键词

SnSe2; eye-safe; passively Q-switched; solid-state laser

资金

  1. Natural Science Foundation of Shandong Province, China [ZR2017MF031]

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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 mu 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 mu m for the first time. This study proved SnSe2 to be an effective optical modulating material for the eye-safe waveband.

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