1. Sorbonne Université, CNRS UMR7590, MNHN, IRD, Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), 4 place Jussieu, F-75005 Paris, France
2. State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fibre Laser Materials and Applied Techniques, Guangdong Engineering Technology Research and Development Center of Special Optical Fibre Materials and Devices, South China University of Technology, Guangzhou 510640, China