Tunable THz radiation source from dielectric loaded waveguide excited by nonrelativistic electron bunch trains

被引：8

作者：

Li, Weiwei ^{[1
]}

He, Zhigang ^{[1
]}

Lu, Yalin ^{[1
]}

Huang, Ruixuan ^{[1
]}

Liu, Weihao ^{[1
]}

Jia, Qika ^{[1
]}

Wang, Lin ^{[1
]}

机构：

[1] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China

来源：

PHYSICAL REVIEW ACCELERATORS AND BEAMS | 2016年 / 19卷 / 10期

关键词：

GENERATION; LASER;

D O I：

10.1103/PhysRevAccelBeams.19.104701

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We propose a novel scheme to generate a tunable narrow-band THz radiation. In this scheme, a train of laser pulses with THz repetition rate is used to drive a photocathode direct current (DC) gun, leading to the emission of a train of electron bunches. The electron bunch train is subsequently accelerated by the gun field and applied to selectively excite one of the modes in the dielectric loaded waveguide (DLW) structure, which is located downstream the DC gun. Thanks to the tunability of the repetition rate of laser pulses and the gun voltage, a tunable narrow-band THz radiation source can be obtained. This proposed source has the advantages of compactness, robustness and relatively high power.

引用

页数：7

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