1. Ningbo University, Laboratory of Infrared Material and Devices, Advanced Technology Research Institute, Ningbo 315211, ChinabKey Laboratory of Photoelectric Materials and Devices of Zhejiang Province, Ningbo, Zhejiang 315211, China
2. University of Central Florida, CREOL, College of Optics and Photonics, Orlando, Florida 32816, United States
3. UMR 6226 CNRS-University of Rennes 1, Laboratory of glasses and Ceramics, Rennes Cedex 135042, France