Soft x-ray femtosecond coherent undulator radiation in a storage ring

被引：21

作者：

Evain, C. ^{[1
]}

Loulergue, A. ^{[1
]}

Nadji, A. ^{[1
]}

Filhol, J. M. ^{[1
]}

Couprie, M. E. ^{[1
]}

Zholents, A. A. ^{[2
]}

机构：

[1] Synchrotron SOLEIL, F-91192 Gif Sur Yvette, France

[2] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

来源：

NEW JOURNAL OF PHYSICS | 2012年 / 14卷

关键词：

FREE-ELECTRON LASER; HARMONIC-GENERATION; SYNCHROTRON-RADIATION; PULSES; OPERATION; DYNAMICS; BOND;

D O I：

10.1088/1367-2630/14/2/023003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose to produce femtosecond pulses of soft x-ray coherent undulator radiation in a storage ring for user pump-probe experiments using two energy exchanges between a picosecond relativistic electron bunch and two external ultra-short laser pulses. The coherent emission is generated thanks to the two laser-electron interactions that modulate the longitudinal charge distribution of the electron bunch at a harmonic of the laser wavelength, such as in the echo-enabled harmonic generation in free-electron lasers. Application to the SOLEIL storage ring in the soft x-ray range leads to coherent radiation and improvement of the flux of the photons by several orders in magnitude compared to the conventional slicing scheme. This is also accompanied by a significant enhancement of the signal-to-noise ratio.

引用

页数：9

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