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

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...

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Bibliographic Details
Published in:arXiv.org 2015-03
Main Authors: Thaury, Cédric, Emilien Guillaume, Döpp, Andreas, Lehe, Remi, Lifschitz, Agustin, Kim Ta Phuoc, Gautier, Julien, Jean-Philippe Goddet, Tafzi, Amar, Flacco, Alessandro, Tissandier, Fabien, Sebban, Stéphane, Rousse, Antoine, Malka, Victor
Format: Article
Language:English
Subjects:
Accelerators
Divergence
Electron accelerators
Free electron lasers
High energy electrons
Laser beams
Lasers
Lenses
Reduction
Relativistic electron beams
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Summary: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 ultra-fast 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.
ISSN:2331-8422
DOI:10.48550/arxiv.1411.7846