Study on Cherenkov laser oscillator using tilted electron bunches

K. Sakaue, M. Brameld, Y. Tadenuma, R. Yanagisawa, M. Washio, R. Kuroda, Y. Taira, J. Urakawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have been studying a coherent Cherenkov radiation by using tilted electron bunches. Bunch tilting can enhance the radiation power about 10 times due to the wavefront matching of radiations. Recently, we investigated that this technique can produce high peak power THz pulses with sufficient pulse energy. The resulting pulse energy was more than 30 nJ/pulse and peak power was about 10 kW. Introducing the oscillator cavity with two concave mirrors can achieve lasing using tilted electron bunches. In the calculation we present, 1 μJ/micro-pulse and 100 μJ/macro-pulse broadband THz pulses are expected to achieve, which is powerful THz source compared with the existing THz FELs. In this conference, we will report the experimental results of coherent Cherenkov radiation, calculated results towards lasing and future prospective.

Original languageEnglish
Title of host publicationProceedings of the 38th International Free-Electron Laser Conference, FEL 2017
EditorsKip Bishofberger, Carlsten Bruce, Volker RW Schaa
PublisherJACoW Publishing
Pages371-373
Number of pages3
ISBN (Electronic)9783954501793
DOIs
Publication statusPublished - 2017
Event38th International Free-Electron Laser Conference, FEL 2017 - Santa Fe, United States
Duration: 2017 Aug 202017 Aug 25

Publication series

NameProceedings of the 38th International Free-Electron Laser Conference, FEL 2017

Conference

Conference38th International Free-Electron Laser Conference, FEL 2017
CountryUnited States
CitySanta Fe
Period17/8/2017/8/25

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Sakaue, K., Brameld, M., Tadenuma, Y., Yanagisawa, R., Washio, M., Kuroda, R., Taira, Y., & Urakawa, J. (2017). Study on Cherenkov laser oscillator using tilted electron bunches. In K. Bishofberger, C. Bruce, & V. RW. Schaa (Eds.), Proceedings of the 38th International Free-Electron Laser Conference, FEL 2017 (pp. 371-373). (Proceedings of the 38th International Free-Electron Laser Conference, FEL 2017). JACoW Publishing. https://doi.org/10.18429/JACoW-FEL2017-TUP067