About the Authors

Sihai Zhang

shzhang@ustc.edu.cn

Affiliation Key Laboratory of Wireless-Optical Communications, Chinese Academy of Sciences, University of Science and Technology of China, Hefei, Anhui, 230017, China

Zhiyang Wang

Affiliation Key Laboratory of Wireless-Optical Communications, Chinese Academy of Sciences, University of Science and Technology of China, Hefei, Anhui, 230017, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: SZ. Formal analysis: SZ ZW. Funding acquisition: SZ. Methodology: SZ ZW. Project administration: SZ. Resources: SZ. Software: ZW. Supervision: SZ. Validation: SZ ZW. Visualization: ZW. Writing – original draft: SZ ZW. Writing – review & editing: SZ.