Angular-Momentum Evolution in Laser-Plasma Accelerators

被引：33

作者：

Thaury, C. ^{[1
]}

Guillaume, E. ^{[1
]}

Corde, S. ^{[1
]}

Lehe, R. ^{[1
]}

Le Bouteiller, M. ^{[1
]}

Phuoc, K. Ta ^{[1
]}

Davoine, X. ^{[2
]}

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

Rousse, A. ^{[1
]}

Malka, V. ^{[1
]}

机构：

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

[2] CEA, DAM, DIF, F-91297 Arpajon, France

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 13期

基金：

欧洲研究理事会;

关键词：

ELECTRON-BEAMS;

D O I：

10.1103/PhysRevLett.111.135002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The transverse properties of an electron beam are characterized by two quantities, the emittance which indicates the electron beam extent in the phase space and the angular momentum which allows for nonplanar electron trajectories. Whereas the emittance of electron beams produced in a laser-plasma accelerator has been measured in several experiments, their angular momentum has been scarcely studied. It was demonstrated that electrons in a laser-plasma accelerator carry some angular momentum, but its origin was not established. Here we identify one source of angular-momentum growth and we present experimental results showing that the angular-momentum content evolves during the acceleration.

引用

页数：5

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