Coherent terahertz radiation from high-harmonic component of modulated free-electron beam in a tapered two-asymmetric grating structure
Coherent terahertz radiation from high-harmonic component of modulated free-electron beam in a tapered two-asymmetric grating structure
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锥形二不对称光栅结构中调制自由电子束高次谐波分量的相干太赫兹辐射
DOI:
10.1063/1.4752730
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发表时间:
2012-09
影响因子:
4
通讯作者:
Sheng-gang Liu
中科院分区:
文献类型:
--
作者:
Ya-xin Zhang;Yu-cong Zhou;Liang Dong;Sheng-gang Liu
Based on the mechanism of incoherent diffraction radiation excited by an electron bunch in a waveguide with periodic structure, this paper presents the concept of coherent terahertz (THz) radiation from the high-harmonic component of a modulated free-electron beam in a tapered two-asymmetric grating structure. The results show that in this mechanism 0.43 THz radiation can be generated with 10 A/cm2 current density, and the efficiency can reach 0.5%. Because of the low required current density and relative high efficiency, this concept shows the application potential for electron-beam-driven terahertz sources.
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DOI:
10.1103/physreva.45.4091
发表时间:
1992-03
期刊:
Physical review. A, Atomic, molecular, and optical physics
影响因子:
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作者:
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通讯作者:
Bonifácio;Corsini;Pierini
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DOI:
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Journal of Physics D: Applied Physics
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Yaxin Zhang;Min Hu;Yan Yang;R. Zhong;Shenggang Liu
DOI:
10.1103/physrevstab.13.022804
发表时间:
2010-02
影响因子:
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影响因子:
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作者:
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