Affiliation: | Feng Liu 1,Xiaokun Hu 1,Jiang Li 1,Changlei Wang 1,Yi Li 1,Yanfeng Li 1,Youjian Song 1,Bowen Liu 1,Minglie Hu 1,Lu Chai 1,Qirong Xing 1,Chingyue Wang 1,and Weili Zhang 1,21 Ultrafast Laser Laboratory,Center for Terahertz Waves,College of Precision Instrument and Opto-Electronics Engineering,Key Laboratory of Opto-Electronics Information Technology (Ministry of Education),Tianjin University,Tianjin 300072,China 2 School of Electrical and Computer Engineering,Oklahoma State University,Stillwater,Oklahoma 7407... |