1. School of Materials Science and Physics China University of Mining and Technology Xuzhou 221116 China
2. Purdue Quantum Science and Engineering Institute (PQSEI) Purdue University West Lafayette IN 47907 USA
3. School of Physics and Optoelectric Engineering Guangdong University of Technology Guangzhou Higher Education Mega Center Guangzhou 510006 China
4. College of Science China University of Petroleum (East China) Qingdao 255680 China
5. School of Optoelectronic Engineering Zaozhuang University Zaozhuang 277160 China