Gaozhong Wang, Saifeng Zhang, Xiaoyan Zhang, Long Zhang, Ya Cheng, Daniel Fox, Hongzhou Zhang, Jonathan N., Werner J., Jun Wang. Tunable nonlinear refractive index of two-dimensional MoS2, WS2, and MoSe2 nanosheet dispersions [Invited][J]. Photonics Research, 2015, 3(2): A51