1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 P. R. China
2. Terahertz Technology Innovation Research Institute School of Optical−Electrical Computer Engineering University of Shanghai for Science and Technology Shanghai 200093 P. R. China
3. College of Physics and Electronic Engineering Sichuan Normal University Chengdu 610101 P. R. China
4. Department of Physical Science & Technology School of Science Wuhan University of Technology Wuhan 430070 P. R. China
5. Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu hydrogen Valley Foshan 528200 P. R. China