1. Collaborative Innovation
Center for Optoelectronic Semiconductors and Efficient Devices, Department
of Physics, Xiamen University, Xiamen 361005, China
2. Engineering Research Center of Advanced
Lighting Technology, Ministry of Education, and School of Information
Science and Technology, Fudan University, Shanghai 200433, China
3. CKX Laboratories, Changkeng, 362421, China
4. Key Laboratory of Artificial Structures and Quantum Control
(Ministry of Education), Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China