About the Authors
- Kunyu Song
- Kenan An
- Guang Yang
- Jiping Huang
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* E-mail: jphuang@fudan.edu.cn
Affiliation Department of Physics, State Key Laboratory of Surface Physics, and Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), Fudan University, Shanghai, China
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: KS JH. Performed the experiments: KS KA GY JH. Analyzed the data: KS KA GY JH. Contributed reagents/materials/analysis tools: KS KA GY JH. Wrote the paper: KS KA GY JH. Designed the software used in experiments: KA.