1. Shenzhen University, Institute of Optoelectronics, NO. 3688, Nanhai Ave, Shenzhen, Guangdong 518060, ChinabGuilin University of Electronic Technology, Department of Education Practice, NO. 1, Jingji Road, Guilin, Guangxi 541004, China
2. Shenzhen University, College of Physics, NO. 3688, Nanhai Ave, Shenzhen, Guangdong 518060, China
3. Shenzhen University, Institute of Optoelectronics, NO. 3688, Nanhai Ave, Shenzhen, Guangdong 518060, China