1. Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education
2. Synergetic Innovation Center for Quantum Effects and Applications (SICQEA)
3. Hunan Normal University
4. Changsha 410081
5. China
6. State Key Laboratory of Optoelectronic Materials and Technologies, Institute of Optoelectronic and Functional Composite Materials, Nanotechnology Research Center
7. School of Physics and Engineering
8. Sun Yat-sen University
9. Guangzhou 510275