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Comptes Rendus Physique
Volume 10, n° 2-3
pages 140-147 (mars 2009)
Doi : 10.1016/j.crhy.2009.03.014
Laser-driven electron acceleration in plasmas with few-cycle pulses
Accélération laser d’électrons dans les plasmas à l’aide d’impulsions formées de quelques cycles
 

Laszlo Veisz a, , Karl Schmid a, b, Franz Tavella a, 1, Sofia Benavides a, Raphael Tautz a, Daniel Herrmann a, Alexander Buck a, Bernhard Hidding c, Andrius Marcinkevicius a, 2, Ulrich Schramm d, Michael Geissler e, Jürgen Meyer-ter-Vehn a, Dietrich Habs b, Ferenc Krausz a, b
a Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, 85748 Garching, Germany 
b Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching, Germany 
c Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany 
d Forschungszentrum Dresden-Rossendorf e. V., Bautzner Landstrasse 128, 01328 Dresden, Germany 
e Queen’s University Belfast, Belfast BT7 1NN, UK 

Corresponding author.
Abstract

We report on laser-driven electron acceleration with 8 fs, i.e. three optical cycles, pulse duration and 40 mJ energy. Theory and numerical simulations predict that this experimentally unexplored parameter range is relevant for laser wake-field acceleration. The electron spectra produced are monoenergetic with a peak up to 50 MeV and free of low-energy electrons with thermal spectrum. The electron beam has a typical divergence of 5–10 mrad. The accelerator is routinely operated at 10 Hz and correspondingly it is a promising source for several applications. To cite this article: L. Veisz et al., C. R. Physique 10 (2009).

The full text of this article is available in PDF format.
Résumé

On présente l’accélération laser d’électrons à l’aide d’implusions laser de 8 fs, ce qui représente 3 cycles optiques, et de 40 mJ seulement. La théorie et les simulations numériques prédisent que ce domaine vierge expérimentalement est pertinent pour l’accélération laser par champ de sillage. Le spectre des électrons produit est monoénergétique avec un pic atteignant 50 MeV et exempt d’une composante thermique de basse énergie. Le faisceau d’électrons a typiquement une divergence de 5–10 mrad. L’accélération se fait à 10 Hz de façon routinière et apparaît donc comme une source prometteuse pour diverses applications. Pour citer cet article : L. Veisz et al., C. R. Physique 10 (2009).

The full text of this article is available in PDF format.

Keywords : Laser-driven electron acceleration, Bubble regime, Monoenergetic, Ultrashort pulse

Mots-clés : Accélération laser d’électrons, Régime de la bulle, Monoénergétique, Impulsion ultra-courte


1  Present address: Deutsches Elektronensynchrotron DESY/HASYLAB, Notkestrasse 85, 22607 Hamburg, Germany.
2  Present address: IMRA America Inc., 1044 Woodridge Avenue, Ann Arbor, MI 48105, USA.


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