About the Authors

Pengfei Sun

Affiliation State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin, China

Changku Sun

Affiliation State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin, China

Wenqiang Li

Affiliations State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin, China, Science and Technology on Electro-optic Control Laboratory, Luoyang Institute of Electro-optic Equipment, Luoyang, China

Peng Wang

wang_peng@tju.edu.cn

Affiliations State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin, China, Science and Technology on Electro-optic Control Laboratory, Luoyang Institute of Electro-optic Equipment, Luoyang, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PS. Performed the experiments: PS PeW. Analyzed the data: WL PW. Contributed reagents/materials/analysis tools: CS. Wrote the paper: PS CS PW.