Beijing Key Laboratory for Precision Optoelectronic Measurement Instrument and Technology;
School of Optics and Photonics;
Beijing Institute of Technology;
Beijing 100081;
China;
Beijing Advanced Innovation Center for Imaging Technology and Key Laboratory of Terahertz Optoelectronics(MoE);
Department of Physics;
Capital Normal University;
Beijing 100048;
China;
Shenzhen Institutes of Advanced Technology;
Chinese Academy of Sciences;
Shenzhen 518055;
China;
The Institute of Optics;
University of Rochester;
Rochester;
NY 14627;
USA;