23 August 2017 Backward wave oscillator for high power generation at THz frequencies
Author Affiliations +
The progress in microfabrication techniques and three dimensional electromagnetic simulations have enabled the fabrication of vacuum electron devices up to 1 THz. In particular, the backward wave oscillator is a compact and powerful THz vacuum source, based on the transfer of energy from an electron beam to an electromagnetic (EM) wave propagating in a slow wave structure. The paper reports the design and fabrication challenges to realize a near-THz Backward Wave Oscillator for plasma diagnostics in nuclear fusion. In particular, the beam optics and confinement as well as the slow wave structure are described. Manufacturing as well as device implementation and demonstration considerations are discussed. The double corrugated waveguide is used with a cylindrical electron beam producing an output power on the order of 1 W.
Conference Presentation
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Diana Gamzina, Diana Gamzina, Xiang Li, Xiang Li, Christian Hurd, Christian Hurd, Ye Tang, Ye Tang, Xuejiao Huang, Xuejiao Huang, Yuan Zheng, Yuan Zheng, Logan Himes, Logan Himes, Michelle Gonzalez, Michelle Gonzalez, Hanyan Li, Hanyan Li, Pan Pan, Pan Pan, Rosa Letizia, Rosa Letizia, Jinjun Feng, Jinjun Feng, Neville C. Luhmann, Neville C. Luhmann, Claudio Paoloni, Claudio Paoloni, } "Backward wave oscillator for high power generation at THz frequencies", Proc. SPIE 10383, Terahertz Emitters, Receivers, and Applications VIII, 1038303 (23 August 2017); doi: 10.1117/12.2273256; https://doi.org/10.1117/12.2273256

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