Abstract

A high harmonic THz Terahertz frequency multiplier based on metallic grating is presented in this paper. The interaction between electron beam and the Spoof Surface Plasmon (SSP) is studied widely in recent years. Compared with the previous interactions operating at the fundamental frequency of the electron beam, the frequency multiplier operates at much higher harmonics, and a 10th harmonic frequency multiplier has been achieved in this paper. And the radiation frequency is greatly increased, accordingly. This system achieves a radiation power 5 W at 0.5 THz with 20kV/400mA electron beam bunches.

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