About the Authors

Dan Yue

danzik3@126.com

Affiliations Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, China, University of Chinese Academy of Sciences, Beijing, China

Shuyan Xu

Affiliation Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, China

Haitao Nie

Affiliations Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, China, University of Chinese Academy of Sciences, Beijing, China

Zongyang Wang

Affiliation Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DY HTN ZYW. Performed the experiments: DY HTN. Analyzed the data: DY HTN ZYW. Contributed reagents/materials/analysis tools: DY SYX. Wrote the paper: DY HTN.