1. MOE Key Laboratory of Fundamental Physical Quantities Measurement & Hubei Key Laboratory of Gravitation and Quantum Physics PGMF and School of Physics Huazhong University of Science and Technology Wuhan Hubei 430074 P. R. China
2. School of Optics and Electronic Information Huazhong University of Science and Technology Wuhan Hubei 430074 P. R. China
3. Research Institute of Superconductor Electronics (RISE) School of Electronic Science and Engineering Nanjing University Nanjing Jiangsu 210023 P. R. China
4. College of Physics and Information Engineering Fuzhou University Fuzhou Fujian 350116 P. R. China
5. School of Electrical and Electronic Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore