title: WS2as a saturable absorber for Q-switched 2  micron lasers.
abstract: We prepared WS2nanosheets by using the thermal decomposition method and demonstrated for the first time its nonlinear saturable absorption property at around 2 μm. With the as-prepared WS2nanosheets as saturable absorber (SA), a passively Q-switched Tm:LuAG laser was realized successfully, and 660 ns laser pulses with an average output power of 1.08 W and pulse peak power of 26 W at a repetition rate of 63 kHz were obtained for an incident pump power of 7 W. Our experimental results definitely demonstrate that WS2could be a kind of promising SA for solid-state 2 μm lasers.
authors: Chao
authors: C
authors: Luan
authors: Kejian
authors: K
authors: Yang
authors: Jia
authors: J
authors: Zhao
authors: Shengzhi
authors: S
authors: Zhao
authors: Lei
authors: L
authors: Song
authors: Tao
authors: T
authors: Li
authors: Hongwei
authors: H
authors: Chu
authors: Junpeng
authors: J
authors: Qiao
authors: Chao
authors: C
authors: Wang
authors: Zhen
authors: Z
authors: Li
authors: Shouzhen
authors: S
authors: Jiang
authors: Baoyuan
authors: B
authors: Man
authors: Lihe
authors: L
authors: Zheng