Hua Zhong1,2, Yongdong Li1, Daohong Song3, Yaroslav V. Kartashov4, Yiqi Zhang1,2,*, Yanpeng Zhang1, and Zhigang Chen3,5
1 Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an, 710049 China
2 Guangdong Xi'an Jiaotong University Academy, Foshan, 528300 China
3 MOE Key Laboratory of Weak‐Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University, Tianjin, 300457 China
4 Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow Region, 108840 Russia
5 Department of Physics and Astronomy, San Francisco State University, San Francisco, CA, 94132 USA