Author Affiliations

Ming Zhou,^*,1,4 Lei Shi,^2,3,4 Jian Zi,^2,3,4 and Zongfu Yu^1,4

¹Department of Electrical and Computer Engineering, University of Wisconsin – Madison, 53706 WI, USA

²Department of Physics, Key Laboratory of Micro- and Nano-Photonic Structures (MOE), and State Key Laboratory of Surface Physics, Fudan University, Shanghai 200433, China

³Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China

⁴1415 Engineering Dr., Engineering Hall 2439, Madison, WI 53706, USA

^*Corresponding author: mzhou34@wisc.edu