Coherent sub-femtosecond soft x-ray free-electron laser pulses with nonlinear compression

被引：5

作者：

Prat, Eduard ^{[1
]}

Malyzhenkov, Alexander ^{[2
]}

Arrell, Christopher ^{[1
]}

Craievich, Paolo ^{[1
]}

Reiche, Sven ^{[1
]}

Schietinger, Thomas ^{[1
]}

Wang, Guanglei ^{[1
]}

机构：

[1] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

[2] CERN, CH-1211 Geneva 23, Switzerland

来源：

APL PHOTONICS | 2023年 / 8卷 / 11期

关键词：

OPERATION;

D O I：

10.1063/5.0164666

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate the generation of coherent soft x-ray free-electron laser (FEL) pulses with a duration below 1 fs using nonlinear compression with a low-charge electron beam (10 pC). The approach is simple, and it does not require any special hardware, so it can be readily implemented at any x-ray FEL facility. We present temporal and spectral diagnostics confirming the production of single-spike sub-femtosecond pulses for photon energies of 642 and 1111 eV. Our work will be important for ultrafast FEL applications requiring soft x-rays.

引用

页数：5

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