Electron Rephasing in a Laser-Wakefield Accelerator

被引：72

作者：

Guillaume, E. ^{[1
]}

Doepp, A. ^{[1
,2
]}

Thaury, C. ^{[1
]}

Phuoc, K. Ta ^{[1
]}

Lifschitz, A. ^{[1
]}

Grittani, G. ^{[3
,4
]}

Goddet, J. -P. ^{[1
]}

Tafzi, A. ^{[1
]}

Chou, S. W. ^{[5
]}

Veisz, L. ^{[5
]}

Malka, V. ^{[1
]}

机构：

[1] Ecole Polytech, CNRS UMR7639, ENSTA ParisTech, Lab Opt Appl, F-91761 Palaiseau, France

[2] Ctr Laseres Pulsados, Salamanca 37185, Spain

[3] Inst Phys ASCR, Vvi FZU, Prague 18221, Czech Republic

[4] Czech Tech Univ, FNSPE, Prague 11519, Czech Republic

[5] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW LETTERS | 2015年 / 115卷 / 15期

基金：

欧洲研究理事会;

关键词：

BEAMS;

D O I：

10.1103/PhysRevLett.115.155002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An important limit for energy gain in laser-plasma wakefield accelerators is the dephasing length, after which the electron beam reaches the decelerating region of the wakefield and starts to decelerate. Here, we propose to manipulate the phase of the electron beam in the wakefield, in order to bring the beam back into the accelerating region, hence increasing the final beam energy. This rephasing is operated by placing an upward density step in the beam path. In a first experiment, we demonstrate the principle of this technique using a large energy spread electron beam. Then, we show that it can be used to increase the energy of monoenergetic electron beams by more than 50%.

引用

页数：5

共 19 条

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