Yb-doped passively mode-locked fiber laser with Bi2Te3-deposited*
Li Lua),c),d), Yan Pei-Guangb), Wang Yong-Gang†a), Duan Li-Naa),d), Sun Hanga), Si Jin-Haic)
       
(a) TEM image of Bi2Te3 nano-sheets; (b) high-resolution TEM image of Bi2Te3 nano-sheets; (c) selected area diffraction pattern of Bi2Te3 nano-sheets.