Development of high power THz band gyrotrons and their applications in physical research

This review aims to bring together information about the development of radiation sources and the most striking examples of using of gyrotrons for spectroscopy and diagnostics of various media. It describes the main features of terahertz gyrotrons. It provides the most striking examples of modern CW and pulse gyrotrons working in the specified frequency range, highlights a number of topical applications and formulates the near-term prospects for the high frequency gyrotron progress.