Terahertz wave and the spectral technology

The terahertz band is an electromagnetic region that has important scientific values.In the recent twenty years,remarkable progress in the research on terahertz wave has been achieved.The properties and applications of terahertz wave are presented in this paper.Also,the generation and detection methods of terahertz wave are introduced.Combined with the research characteristics of China Jiliang University,the future work on terahertz wave is discussed.