1. State Key Laboratory on Integrated Optoelectronics; College of Electronic Science and Engineering, Jilin University; 2699 Qianjin Street Changchun 130012 China
2. Key Laboratory of Bionic Engineering (Ministry of Education); Jilin University; Changchun 130022 China
3. College of Physics; Jilin University; 119 Jiefang Road Changchun 130023 China