WS_2 saturable absorber for dissipative soliton mode locking at 106 and 155 µm Mao, Dong ; Zhang, Shengli ; Wang, Yadong ; Gan, Xuetao ; Zhang, Wending ; Mei, Ting ; Wang, Yonggang ; Wang, Yishan ; Zeng, Haibo ; Zhao, Jianlin Abstract Publication: Optics Express Pub Date: October 2015 DOI: 10.1364/OE.23.027509 Bibcode: 2015OExpr..2327509M