Research Progress of Terahertz Radiation Source Based on Smith-Purcell Radiation

摘要

The terahertz radiation source based on Smith-Purcell radiation has been widely studied in the scientific field because of its advantages such as high conversion efficiency, high power, good stability, and convenient use. In this article, the research progress of one-dimensional and two-dimensional terahertz radiation source structures is given, and the development trend of Smith-Purcell radiation using metasurfaces is discussed for terahertz radiation sources.