Author Affiliations

W. Xu,¹ D. Y. Tang,^1,* X. D. Xu,² L. H. Zheng,³ J. Zhang,¹ W. D. Tan,¹ D. Z. Li,² B. L. Su,³ and J. Xu³

¹School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, 639798

²Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China, 201800

³Key Laboratory of Transparent and Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China, 201800

^*Corresponding author: edytang@ntu.edu.sg