A compact terahertz free-electron laser with two gratings driven by two electron-beams
作者： Weihao Liu , Yalin Lu , Lin Wang , Qika Jia
DOI: 10.1063/1.4976122
关键词:
摘要: We proposed and investigated a novel terahertz free-electron laser, which is based on two gratings driven by electron-beams. Two are symmetrically arranged to form an open-cavity. electron-beams generate special Smith-Purcell radiations, respectively, from gratings. When radiation interferes constructively, operation modes of the open-cavity excited then amplified beam-wave interactions. By means particle-in-cell simulations, we have shown that, with compact equipments available electron-beams, this scheme can power efficiency being higher than those majority sources in vicinity region 1 THz. It promisingly be developed as high-power, high-efficiency, source for practice.
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