Optically Pumped Two-Dimensional MoS2 Lasers Operating at Room-Temperature Salehzadeh, Omid ; Djavid, Mehrdad ; Tran, Nhung Hong ; Shih, Ishiang ; Mi, Zetian Abstract Publication: Nano Letters Pub Date: August 2015 DOI: 10.1021/acs.nanolett.5b01665 Bibcode: 2015NanoL..15.5302S