SbS3 enhanced ultrafast third-order optical nonlinearities of Ge–S chalcogenide glasses at 820nm - Chu, Saisai; Li, Fengming; Tao, Haizheng; Hong Yang; Wang, Shufeng; Lin, Changgui; Zhao, Xiujian; Qihuang Gong (Optical MaterialsOptical Materials, 2008)