1. Beijing Engineering Research Center of Mixed Reality and Advanced Displays, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, P. R. China
2. Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
3. Analysis and Testing Center, Beijing Institute of Technology, Beijing 100081, P. R. China