Pulse generation of erbium-doped fiber laser based on liquid-exfoliated FePS
3
Yin Qing
1, 3
, Wang Jin
2
, Shi Xin-Yao
3
, Wang Tao
2
, Yang Jie
3
, Zhao Xin-Xin
3
, Shen Zhen-Jiang
4
, Wu Jian
2, ‡
, Zhang Kai
3, §
, Zhou Pu
2
, Jiang Zong-Fu
2
(a) AFM image of FePS
3
nanoflakes; (b) the corresponding height and optical microscope image.