This paper reviews the development of radiation sources and presents the most notable examples of the use of gyrotrons in spectroscopy and material diagnostics. The paper describes the main features of terahertz gyrotrons. It presents the most prominent examples of modern CW and pulsed gyrotrons for a specified frequency range, examines a number of topical applications, and discusses near-term development prospects for high frequency gyrotrons.
Keywords: gyrotron, terahertz radiation, power, spectroscopy PACS:07.57.−c, 41.60.−m, 84.40.Ik (all) DOI:10.3367/UFNe.2016.02.037801 URL: https://ufn.ru/en/articles/2016/6/j/ Citation: Glyavin M Yu, Denisov G G, Zapevalov V E, Koshelev M A, Tretyakov M Yu, Tsvetkov A I "High power terahertz sources for spectroscopy and material diagnostics" Phys. Usp.59 595–604 (2016)