Demonstration of relativistic electron beam focusing by a laser-plasma lens

C. Thaury (), E. Guillaume, A. Döpp, R. Lehe, A. Lifschitz, K. Ta Phuoc, J. Gautier, Goddet J-P, A. Tafzi, A. Flacco, F. Tissandier, S. Sebban, A. Rousse and V. Malka
Additional contact information
C. Thaury: Laboratoire d'Optique Appliquée, ENSTA–CNRS UMR7639–École Polytechnique
E. Guillaume: Laboratoire d'Optique Appliquée, ENSTA–CNRS UMR7639–École Polytechnique
A. Döpp: Laboratoire d'Optique Appliquée, ENSTA–CNRS UMR7639–École Polytechnique
R. Lehe: Laboratoire d'Optique Appliquée, ENSTA–CNRS UMR7639–École Polytechnique
A. Lifschitz: Laboratoire d'Optique Appliquée, ENSTA–CNRS UMR7639–École Polytechnique
K. Ta Phuoc: Laboratoire d'Optique Appliquée, ENSTA–CNRS UMR7639–École Polytechnique
J. Gautier: Laboratoire d'Optique Appliquée, ENSTA–CNRS UMR7639–École Polytechnique
Goddet J-P: Laboratoire d'Optique Appliquée, ENSTA–CNRS UMR7639–École Polytechnique
A. Tafzi: Laboratoire d'Optique Appliquée, ENSTA–CNRS UMR7639–École Polytechnique
A. Flacco: Laboratoire d'Optique Appliquée, ENSTA–CNRS UMR7639–École Polytechnique
F. Tissandier: Laboratoire d'Optique Appliquée, ENSTA–CNRS UMR7639–École Polytechnique
S. Sebban: Laboratoire d'Optique Appliquée, ENSTA–CNRS UMR7639–École Polytechnique
A. Rousse: Laboratoire d'Optique Appliquée, ENSTA–CNRS UMR7639–École Polytechnique
V. Malka: Laboratoire d'Optique Appliquée, ENSTA–CNRS UMR7639–École Polytechnique

Nature Communications, 2015, vol. 6, issue 1, 1-5

Abstract: Abstract Laser-plasma technology promises a drastic reduction of the size of high-energy electron accelerators. It could make free-electron lasers available to a broad scientific community and push further the limits of electron accelerators for high-energy physics. Furthermore, the unique femtosecond nature of the source makes it a promising tool for the study of ultrafast phenomena. However, applications are hindered by the lack of suitable lens to transport this kind of high-current electron beams mainly due to their divergence. Here we show that this issue can be solved by using a laser-plasma lens in which the field gradients are five order of magnitude larger than in conventional optics. We demonstrate a reduction of the divergence by nearly a factor of three, which should allow for an efficient coupling of the beam with a conventional beam transport line.

Date: 2015
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DOI: 10.1038/ncomms7860

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