Silver Sulfide Nanosheets: 2D Ductile Transition Metal Chalcogenides (TMCs): Novel High‐Performance Ag2S Nanosheets for Ultrafast Photonics (Advanced Optical Materials 6/2020)

Two-dimensional Ag2S – with its large absorption coefficient, broadband optical response, extraordinary metal-like ductility, high plastic deformation strain, unique layered structure, and very low solubility – offers a platform for achieving tremendous success in various fields of photonics. In article number 1901762, Xiaohui Li and co-workers experimentally realize ultrashort soliton operation based on a 2D Ag2S saturable absorber integrated into a fiber laser. The 229th harmonic soliton molecule achieves a repetition rate of 1.1 GHz in the telecommunication band.