1. Key Laboratory of Optoelectronic Technology of Jiangsu Province; School of Physics and Technology; Nanjing Normal University; Nanjing 210023 China
2. Key Lab of Advanced Transducers and Intelligent Control Systems; Ministry of Education and Shanxi Province; College of Physics and Optoelectronics; Taiyuan University of Technology; Taiyuan 030024 China
3. School of Physics and Telecommunications Engineering; Zhoukou Normal University; Zhoukou 466001 China
4. Science for Life Laboratory; School of Engineering Sciences in Chemistry; Biotechnology and Health; KTH-Royal Institute of Technology; SE-171 65 Stockholm Sweden