Author: Xiong, K.
Paper Title Page
TUP070 Numerical Calculation of Diffraction Loss for Characterisation of a Partial Waveguide FEL Resonator 521
  • Q. Fu, B. Qin, P. Tan, K. Xiong, Y.Q. Xiong
    HUST, Wuhan, People's Republic of China
  Waveguide is widely used in long wavelength Free-Electron Lasers to reduce diffraction losses. In this paper the amplitude and phase transverse distribution of light emission produced in a partial-waveguide FEL resonator is calculated by Fresnel principle. To acquire high power out-coupled and optimize resonator structure of HUST THz-FEL, the characterisation of reflecting mirror is discussed to reduce diffraction loss.