Author Affiliations

Kai Dong,¹ Qi-Ye Wen,^1,* Wei-En Lai,¹ Zhi Chen,² DanDan Sun,¹ and Huai-Wu zhang¹

¹State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, China

²National Key Laboratory of Science and Technology on Communication, University of Electronic Science and Technology of China, Chengdu, 610054, China

[8-pt. type. For codes, see www.opticsinfobase.org/submit/ocis.]

^*Corresponding author: qywen@uestc.edu.cn