High-efficiency broadband THz emission via diffraction-radiation cavity

@article{Honda2019HighefficiencyBT,
  title={High-efficiency broadband THz emission via diffraction-radiation cavity},
  author={Yosuke Honda and Miho Shimada and A. Aryshev and Ryukou Kato and Tsukasa Miyajima and Takashi Obina and Ryota Takai and Takashi Uchiyama and Naoto Yamamoto},
  journal={Physical Review Accelerators and Beams},
  year={2019}
}
Accelerator-based terahertz (THz) radiation has been expected to realize a high-power broadband source. Employing a low-emittance and short-bunch electron beam at a high repetition rate, a scheme of coherent diffraction-radiation in an optical cavity layout is proposed. The scheme's stimulated radiation process between bunches can greatly enhance the efficiency of the radiation emission. We performed an experiment with a superconducting linac constructed as an energy recovery linac (ERL) test… 
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