Author Affiliations

Yunxiao Zhang,⁽¹⁾ Nan Huo,⁽¹⁾ Wen Zhao,⁽¹⁾ Xueshi Guo,⁽¹⁾ Xiaoying Li,^(1),* and Z. Y. Ou^(2),+

⁽¹⁾College of Precision Instrument and Opto-Electronics Engineering, Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin 300072, P. R. China

⁽²⁾Department of Physics, City University of Hong Kong, Kowloon, Hong Kong SAR, P. R. China

^*Corresponding author: xiaoyingli@tju.edu.cn

⁺ jeffou@cityu.edu.hk