[1] Chinese Univ Hong Kong, Dept Elect Engn, Shatin, Hong Kong 999077, Peoples R China
[2] Eindhoven Univ Technol, Dept Appl Phys, Mat Simulat & Modelling, NL-5600 MB Eindhoven, Netherlands
[3] Hong Kong Univ Sci & Technol, Smart Mfg Thrust, Syst Hub, Guangzhou 511458, Peoples R China
[4] Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong 999077, Peoples R China