Terahertz Radiation from Dual-Grating Driven by Two Electron Beams
Terahertz Radiation from Dual-Grating Driven by Two Electron Beams
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DOI：
10.1143/jjap.46.1745
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发表时间：
2007-04
影响因子：
1.5
通讯作者：
Wenxin Liu;Ziqiang Yang;Z. Liang;Dazhi Li;K. Imasaki
中科院分区：
文献类型：
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作者：
Wenxin Liu;Ziqiang Yang;Z. Liang;Dazhi Li;K. Imasaki
提出了一种利用双电子束驱动矩形双光栅产生太赫兹辐射的方法。具有速度分离的两个光束在两个相对放置的光栅之间混合行进。利用流体理论导出了偶模和奇模的线性色散方程，并通过数值计算进行了求解。双流不稳定性引起的增长率相当大的增强被证明。
An approach to producing terahertz (THz) radiation from a rectangular dual grating driven by two electron beams is presented in this paper. The two beams with velocity separation are admixed traveling between the two oppositely placed gratings. The linear dispersion equations for the even and odd modes are derived using the fluid theory and solved through numerical computation. A considerable enhancement in growth rate induced by two-stream instability is demonstrated.