Funding for this research was provided by:
National Natural Science Foundation of China (Grant 61971097)
National Key Research and Development Program of China (2019YFA0210202)
Sichuan Science and Technology Program (2018HH0136)
Terahertz Science and Technology Key Laboratory of Sichuan Province Foundation (THZSC201801)
Article History
Received: 8 May 2020
Accepted: 2 December 2020
First Online: 7 January 2021