Generation of coherent two-color pulses at two adjacent harmonics in a seeded free-electron laser

Generation of coherent two-color pulses at two adjacent harmonics in a seeded free-electron laser
复制标题

在种子自由电子激光器中以两个相邻谐波生成相干双色脉冲

DOI:
10.1103/physrevaccelbeams.21.020701
复制
发表时间:
2017-10
影响因子:
1.7
通讯作者:
Qika Jia
Qika Jia
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Zhouyu Zhao;Heting Li;Qika Jia

文献摘要

参考文献

相似文献

泵浦探测技术和非线性光学实验日益增长的需求极大地促进了双色自由电子激光器(FEL)的研究。我们提出了一种在高增益谐波发生 (HGHG) FEL 中生成相干双色脉冲的新方法。在该方案中,初始倾斜电子束被发送通过 HGHG FEL 的调制器和色散部分,以在种子激光的谐波处产生聚束。然后采用横向梯度波荡器(TGU)作为辐射器,在这种辐射器中,只有倾斜光束的两个分离部分会在种子激光器的两个相邻谐波处谐振,并能够同时发射相干双色脉冲。两个脉冲之间的时间间隔约为数百飞秒,并且可以通过改变电子束的倾斜幅度和/或 TGU 辐射器的横向梯度来精确控制。数值模拟验证了该方案在EUV波段的有效性和可行性。
The growing requirements of pump-probe techniques and nonlinear optics experiments greatly promote the studies of two-color free-electron lasers (FELs). We propose a new method to generate coherent two-color pulses in a high-gain harmonic generation (HGHG) FEL. In this scheme, an initial tilted electron beam is sent though the modulator and dispersive section of an HGHG FEL to generate the bunching at harmonics of the seed laser. Then a transverse gradient undulator (TGU) is adopted as the radiator and in such radiator, only two separated fractions of the tilted beam will resonate at two adjacent harmonics of the seed laser and are enabled to emit the coherent two-color pulses simultaneously. The time separation between the two pulses are on the order of hundreds of femtoseconds, and can be precisely controlled by varying the tilted amplitude of the electron beam and/or the transverse gradient of the TGU radiator. Numerical simulations confirm the validity and feasibility of this scheme in the EUV waveband.
DOI: 10.1107/s1600577516007189
发表时间: 2016-07
影响因子: 2.5
作者:
S. Reiche;E. Prat
通讯作者: S. Reiche;E. Prat
DOI: 10.1088/1674-1137/37/11/118101
发表时间: 2013-01
期刊: --
影响因子: --
作者:
Tong Zhang;H. Deng;Weiqing Zhang;Guo-Rong Wu;D. Dai;Dong Wang;Xue-Ming Yang;Zhentang(赵振堂) Zhao
通讯作者: Tong Zhang;H. Deng;Weiqing Zhang;Guo-Rong Wu;D. Dai;Dong Wang;Xue-Ming Yang;Zhentang(赵振堂) Zhao
DOI: 10.1103/physrevlett.110.134801
发表时间: 2013-03-25
影响因子: 8.6
作者:
Lutman, A. A.;Coffee, R.;Nuhn, H. -D.
通讯作者: Nuhn, H. -D.
DOI: 10.1063/1.4980092
发表时间: 2017-04-10
影响因子: 4
作者:
Emma, C.;Lutman, A.;Pellegrini, C.
通讯作者: Pellegrini, C.
DOI: 10.1038/nphoton.2016.79
发表时间: 2016-07-01
期刊: NATURE PHOTONICS
影响因子: 35
作者:
Lutman, Alberto A.;MacArthur, James P.;Nuhn, Heinz-Dieter
通讯作者: Nuhn, Heinz-Dieter