Single- and dual-wavelength passively mode-locked erbium-doped fiber laser based on antimonene saturable absorber

As the cousin of phosphorene, antimonene, i.e., two-dimensional Sb monolayer, aroused an intensive attention to its physical performance in recent years. In this paper, few-layer antimonene (FLA) nanosheets with thickness of 3~6 nm were prepared by liquid phase exfoliation (LPE). The saturated absorption properties were measured using the Z-scan method. The single-and dual-wavelength mode-locked f...