Heng Wang¹, Kang Du¹, Chuhao Jiang¹, Zhiqiang Yang¹, Lixia Ren¹, Wending Zhang^1,†, Soo Jin Chua^1,2,3, and Ting Mei^1,*

• ¹MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, and Shaanxi Key Laboratory of Optical Information Technology, School of Physical Science and Technology, Northwestern Polytechnical University, Xi’an 710129, China
• ²Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583
• ³LEES Program, Singapore-MIT Alliance for Research & Technology (SMART), 1 CREATE Way, #10-01 CREATE Tower, Singapore 138602

• ^*ting.mei@ieee.org
• ^†zhangwd@nwpu.edu.cn