1. Faculty of Materials Science and Technology, University of Science, Vietnam National University Ho Chi Minh City, Vietnam
2. Vietnam National University Ho Chi Minh City, Vietnam
3. IFN-CNR CSMFO Lab. and FBK Photonics Unit, Via alla Cascata 56/C Povo, 38123, Trento, Italy
4. Department of Physics, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milano, Italy
5. Department of Materials Technology, Faculty of Applied Science, Ho Chi Minh City University of Technology and Education, Vo Van Ngan Street 1, Thu Duc District, 720214, Ho Chi Minh City, Vietnam
6. Institute of Materials Science, Vietnam Academy of Science, and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam