Harmonic-enhanced high-gain harmonic generation for a high repetition rate free-electron laser

被引：0
|
作者：
Sheng Zhao [1 ]
Weilun Qin [2 ]
Senlin Huang [1 ]
机构：
[1] State Key Laboratory of Nuclear Physics and Technology and Institute of Heavy Ion Physics, School of Physics, Peking University
[2] Deutsches Elektronen-Synchrotron (DESY)
来源：
High Power Laser Science and Engineering | 2022年 / 10卷 / 01期
基金：
中国国家自然科学基金;
关键词：
D O I：
暂无
中图分类号：
TN248 [激光器];
学科分类号：
0803 ; 080401 ; 080901 ;
摘要：
High-gain harmonic generation(HGHG) is effective to produce fully coherent free-electron laser(FEL) pulses for various scientific applications. Due to the limitation of seed lasers, HGHG typically operates at a low repetition rate.In this paper, a harmonic-enhanced HGHG scheme is proposed to relax the peak power requirement for the seed laser,which can therefore operate at megahertz and a higher repetition rate. Moreover, the setup of the scheme is compact and can be adopted in an existing single-stage HGHG facility to extend the shortest achievable wavelength. Simulations show that FEL emission at 13.5 nm(20th harmonic) can be obtained with a 270 nm, 1 MW(peak power) seed laser.
引用
收藏
页码：32 / 39
页数：8
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