1. School of Teacher Education, Nanjing University of Information Science and Technology, Nanjing 210044, People’s Republic of China
2. Jiangsu Key Laboratory for Optoelectronic Detection of Atmosphere and Ocean, Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment Technology (CICAEET), Nanjing University of Information Science and Technology, Nanjing 210044, People’s Republic of China