1. College of Electronic and Electrical Engineering and the Key Laboratory of Optoelectronic Sensing Integrated Application of Henan Province, Henan Normal University, Xinxiang, China
2. College of Electronic and Electrical Engineering, Henan Normal University, Xinxiang, China
3. College of Physics, Henan Normal University, Xinxiang, China
4. School of Physics and the Key Laboratory of Optoelectronic Sensing Integrated Application of Henan Province, Henan Normal University, Xinxiang, China