1. Thai Nguyen University of Education, Thai Nguyen University, Thai Nguyen, Vietnam
2. Institute of Materials Science, Vietnam Academy of Science and Technology, Hanoi, Vietnam
3. Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
4. Department of Optical Science and Engineering, Fudan University, Shanghai, People’s Republic of China
5. Department of Physics, Quantum Photonic Science Research Center and RINS, Hanyang University, Seoul, Korea