Lei Wang¹, Chien-Ju Chen², *Lai Wang¹, Kai-Chia Chen², Zhibiao Hao¹, Yi Luo¹, Meng-Chyi Wu², Changzheng Sun¹, Yanjun Han¹, Bing Xiong¹, Jian Wang¹, Hongtao Li¹ (1. Tsinghua University, Beijing, China, 2. National Tsing Hua University, Hsinchu, Taiwan, China)

*Daibing Zhou¹, Song Liang¹, Dan Lu¹, Lingjuan Zhao¹, Wei wang¹ (1. Institute of Semiconductors, Chinese Academy of Sciences)

*Yuya Yamada¹, Ryo Fujishima¹, Motoaki Iwaya¹, Tetsuya Takeuchi¹, Satoshi Kamiyama¹, Isamu Akasaki^1,2 (1. The University of Meijo, 2. Akasaki Reserch Center, Nagoya Univ.)

*Soshi Umeda¹, Takumi Nagata¹, Masahiro Uemukai¹, Tomoyuki Tanikawa¹, Ryuji Katayama¹ (1. Graduate School of Engineering, Osaka University)