[Liu, Qian; Zhang, Xinzheng; Wang, Meng] Nankai Univ, MOE Key Lab Weak Light Nonlinear Photon, TEDA Appl Phys Sch, Tianjin 300457, Peoples R China.
[Liu, Qian; Zhang, Xinzheng; Wang, Meng] Nankai Univ, Sch Phys, Tianjin 300457, Peoples R China.
[Zhang, Jianming; Liu, Qian; Wang, Meng; Tian, Ye; Wang, Chuang] Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China.
[Zhang, Jianming; Tian, Ye; Wang, Chuang] Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China.
[Guo, Chuanfei] Univ Houston, Dept Phys, Houston, TX 77004 USA.