Polarized Upconversion Luminescence from a Single NaYF 4:Yb 3+/Er 3+ Microrod for Orientation Tracking
Xiaoke Hu, Xiaoying Shang, Ping Huang, Wei Zheng, Xueyuan Chen
Acta Chimica Sinica . 2022, (3): 244 -248 .  DOI: 10.6023/A21120618