A grating-resonator composite structure was investigated.The output characteristics of Smith-Purcell radiation in this grating-resonator composite structure were studied by optical theoretic analysis and particle-in-c...A grating-resonator composite structure was investigated.The output characteristics of Smith-Purcell radiation in this grating-resonator composite structure were studied by optical theoretic analysis and particle-in-cell simulation method.The results showthat tunable coherent Smith-Purcell radiation at Terahertz wavelengths can be generated by this novel structure.This novel grating-resonator composite structure has the following advantages:it can reflect all radiation with an emission angle and random azimuthal angles which backs onto the electron beam with same phase and cause the electrons to be modulated.展开更多
基金Supported by National Natural Science of China(11275089,11375081)
文摘A grating-resonator composite structure was investigated.The output characteristics of Smith-Purcell radiation in this grating-resonator composite structure were studied by optical theoretic analysis and particle-in-cell simulation method.The results showthat tunable coherent Smith-Purcell radiation at Terahertz wavelengths can be generated by this novel structure.This novel grating-resonator composite structure has the following advantages:it can reflect all radiation with an emission angle and random azimuthal angles which backs onto the electron beam with same phase and cause the electrons to be modulated.
