摘要
We study the exfoliation of ultrathin ReS2 nanosheets from the prepared ReS2 powder and their application to Q-switched Er-doped fiber laser.XRD,Raman,and XPS spectra confirm the successful preparation of the layered ReS2.SEM images show that the obtained ReS2 sheets have lateral size below 200 nm.The thickness of the ReS2 nanosheets is smaller than 5 nm according to the AFM results.ReS2/PVA film is applied as a saturable absorber in an Er-doped Q-switched fiber laser,and a minimum pulse duration of 2.4μs and an output power of 1.25 mW are obtained,indicating the potential application to Q-switched lasers.
基金
Project supported by the Pearl River Talent Program of Guangdong Province,China(No.2017GC010278)
the Science and Technology Program of Guangzhou,China(No.202002030027)
the National Natural Science Foundation of China(No.61705044)
the Distinctive Innovation Project of Regular Colleges in Guangdong Province,China(No.2018KTSCX052)。
