1 Laboratory of Micro/Nano-Optoelectronics, School of Electronic Science and Engineering, Xiamen University, Xiamen, 361005, Fujian, People's Republic of China.
2 Laboratory of Micro/Nano-Optoelectronics, School of Electronic Science and Engineering, Xiamen University, Xiamen, 361005, Fujian, People's Republic of China. meiyang@xmu.edu.cn.
3 Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, Jiangsu, People's Republic of China.
4 Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, Jiangsu, People's Republic of China. jpliu2010@sinano.ac.cn.
5 Department of Photonics, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan, People's Republic of China.
6 Semiconductor Research Center, Honhai Research Institute, New Taipei, 220236, Taiwan, People's Republic of China.
7 Laboratory of Micro/Nano-Optoelectronics, School of Electronic Science and Engineering, Xiamen University, Xiamen, 361005, Fujian, People's Republic of China. bzhang@xmu.edu.cn.