Terahertz radiation emission from plasma beat-wave interactions with a relativistic electron beamстатьяИсследовательская статья
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Дата последнего поиска статьи во внешних источниках: 6 сентября 2017 г.
Аннотация:We present a mechanism to generate terahertz radiation from laser-driven plasma beat-wave interacting with an electron beam. The theory of the energy transfer between the plasma beat-wave and terahertz radiation is elaborated through nonlinear coupling in the presence of a negative-energy relativistic electron beam. An expression of terahertz radiation field is obtained to find out the efficiency of the process. Our results show that the efficiency of terahertz radiation emission is strongly sensitive to the electron beam energy. Emitted field strength of the terahertz radiation is calculated as a function of electron beam velocity.