Superimposed-harmonic Smith-Purcell free-electron lasers driven by periodic electron-bunches
Superimposed-harmonic Smith-Purcell free-electron lasers driven by periodic electron-bunches
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由周期性电子束驱动的叠加谐波史密斯-珀塞尔自由电子激光器
DOI:
10.1063/1.5064865
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发表时间:
2019-01
影响因子:
2.2
通讯作者:
Lu Yalin
中科院分区:
文献类型:
--
作者:
Liang Linbo;Liu Weihao;Jia Qika;Wang Lin;Lu Yalin
To meet the requirements of high power and broad-tunable terahertz sources, we proposed and investigated a modified Smith-Purcell free-electron laser (SP-FEL) driven by periodic electron-bunches (PEBs). We first designed an electron-gun with a photocathode, which generates a train of PEBs with tunable macro-bunching frequency. These PEBs then interact with surface waves on a grating and are further micro-bunched. The macro-bunching frequency together with its harmonics is superimposed on the micro-bunching one such that the multi-color superradiant Smith-Purcell radiation is achieved at the superimposed harmonics. By adjusting the macro-bunching frequency, the superradiant frequency can be tuned from 0.5 to 1 THz—a region hard to reach by conventional SP-FELs and vacuum electron devices. Compared to DC-beams, the PEBs have higher peak current density and generate higher peak power. Thus, the proposed scheme can be promisingly developed as high power and broad-tunable terahertz sources.
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影响因子:
4
作者:
Li, D.;Hangyo, M.;Tsunawaki, Y.;Yang, Z.;Wei, Y.;Miyamoto, S.;Asakawa, M. R.;Imasaki, K.
通讯作者:
Imasaki, K.
DOI:
10.1016/j.nima.2007.04.129
发表时间:
2007-07
影响因子:
1.4
作者:
M. Boscolo;M. Ferrario;I. Boscolo;F. Castelli;S. Cialdi
通讯作者:
M. Boscolo;M. Ferrario;I. Boscolo;F. Castelli;S. Cialdi
影响因子:
4.6
作者:
Weihao Liu;L. Liang;Q. Jia;Lin Wang;Yalin Lu
通讯作者:
Weihao Liu;L. Liang;Q. Jia;Lin Wang;Yalin Lu
DOI:
10.1103/physrevstab.8.110702
发表时间:
2005-11
影响因子:
--
作者:
H. Andrews;C. Boulware;C. Brau;J. Jarvis
通讯作者:
H. Andrews;C. Boulware;C. Brau;J. Jarvis
影响因子:
1.5
作者:
Michael E. Read;Vadim Jabotinski;G. Miram;Lawrence Ives
通讯作者:
Michael E. Read;Vadim Jabotinski;G. Miram;Lawrence Ives