[1] Chinese Acad Sci, Shanghai Inst Tech Phys, Key Lab Intelligent Infrared Percept, State Key Lab Infrared Phys, Shanghai 200083, Peoples R China
[2] Univ Chinese Acad Sci, Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Hunan Univ, Sch Phys & Elect, Minist Educ, Key Lab Micronano Optoelect Devices, Changsha 410082, Peoples R China
[4] Hunan Univ, Sch Phys & Elect, Hunan Prov Key Lab Low Dimens Struct Phys & Devic, Changsha 410082, Peoples R China
[5] Univ Shanghai Sci & Technol, Terahertz Technol Innovat Res Inst, Terahertz Spectrum & Imaging Technol Cooperat Inn, Shanghai Key Lab Modern Opt Syst, Shanghai 200093, Peoples R China
[6] Univ Chinese Acad Sci, Hangzhou Inst Adv Study, Hangzhou 310024, Peoples R China
[7] Hunan Univ, Coll Mat Sci & Engn, Key Lab Micronano Phys & Technol Hunan Prov, Changsha 410082, Peoples R China
[8] Zhengzhou Univ, Sch Phys & Engn, Henan Key Lab Diamond Optoelect Mat & Devices, Zhengzhou 45000, Peoples R China