Terahertz source based on coherent Smith-Purcell radiation from femtosecond electron beam

Hong Qi; Kuanjun Fan; Jian Wang; Xiaofei Li; Jinfeng Yang

doi:10.1117/12.2604501

9 September 2021 Terahertz source based on coherent Smith-Purcell radiation from femtosecond electron beam

Hong Qi, Kuanjun Fan, Jian Wang, Xiaofei Li, Jinfeng Yang

Proceedings Volume 11909, Tenth International Symposium on Ultrafast Phenomena and Terahertz Waves (ISUPTW 2021); 119090G (2021) https://doi.org/10.1117/12.2604501
Event: Tenth International Symposium on Ultrafast Phenomena and Terahertz Waves (ISUPTW 2021), 2021, Chengdu, China

Abstract

The advances in electron accelerator science and technology continue to reach shorter bunch lengths, even down to femtosecond, paving a way to generate coherent Smith-Purcell radiation naturally, taken as one of the most promising THz sources. In order to design a high power and broadly tunable THz radiation source, we make theoretical and numerical analysis of the characteristic of coherent Smith-Purcell radiation, which demonstrates good agreement between them. In the paper, we also present the comparison of spectra of coherent Smith-Purcell produced from the interaction of a single bunch and a train of microbunches.

Citation Download Citation

Hong Qi, Kuanjun Fan, Jian Wang, Xiaofei Li, and Jinfeng Yang "Terahertz source based on coherent Smith-Purcell radiation from femtosecond electron beam", Proc. SPIE 11909, Tenth International Symposium on Ultrafast Phenomena and Terahertz Waves (ISUPTW 2021), 119090G (9 September 2021); https://doi.org/10.1117/12.2604501

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