Experimental demonstration of a terahertz extended interaction oscillator driven by a pseudospark-sourced sheet electron beam

• DOI: 10.1063/1.5011102
• Publication Date: 2018-01-18T18:30:08Z
• Authors: G. X. Shu; L. Zhang; H. Yin; J. P. Zhao; A. D. R. Phelps; A. W. Cross; G. Liu; Y. Luo; Z. F. Qian; W. He
• Keywords: Pulse duration; Backward-wave oscillator

We have recently proposed to combine the advantages of a pseudospark-sourced sheet electron beam (PS-SEB) with planar slow wave structure generate high power terahertz radiation. To verify this idea, experimental investigation an extended interaction oscillator based on PS-SEB has been conducted and presented. A approximately 1.0 mm × 0.17 in size 21.5 peak current (1.26 104 A/cm2 density) 34.5 kV voltage was measured after propagating distance 10-mm without need external focusing magnetic field. radiation pulse ∼35 ns duration output over 10 W at frequency ∼0.2 THz were measured.