[Accélération laser d'électrons dans les plasmas à l'aide d'impulsions formées de quelques cycles]
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.
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.
Mot clés : Accélération laser d'électrons, Régime de la bulle, Monoénergétique, Impulsion ultra-courte
Laszlo Veisz 1 ; Karl Schmid 1, 2 ; Franz Tavella 1 ; Sofia Benavides 1 ; Raphael Tautz 1 ; Daniel Herrmann 1 ; Alexander Buck 1 ; Bernhard Hidding 3 ; Andrius Marcinkevicius 1 ; Ulrich Schramm 4 ; Michael Geissler 5 ; Jürgen Meyer-ter-Vehn 1 ; Dietrich Habs 2 ; Ferenc Krausz 1, 2
@article{CRPHYS_2009__10_2-3_140_0,
author = {Laszlo Veisz and Karl Schmid and Franz Tavella and Sofia Benavides and Raphael Tautz and Daniel Herrmann and Alexander Buck and Bernhard Hidding and Andrius Marcinkevicius and Ulrich Schramm and Michael Geissler and J\"urgen Meyer-ter-Vehn and Dietrich Habs and Ferenc Krausz},
title = {Laser-driven electron acceleration in plasmas with few-cycle pulses},
journal = {Comptes Rendus. Physique},
pages = {140--147},
publisher = {Elsevier},
volume = {10},
number = {2-3},
year = {2009},
doi = {10.1016/j.crhy.2009.03.014},
language = {en},
}
TY - JOUR AU - Laszlo Veisz AU - Karl Schmid AU - Franz Tavella AU - Sofia Benavides AU - Raphael Tautz AU - Daniel Herrmann AU - Alexander Buck AU - Bernhard Hidding AU - Andrius Marcinkevicius AU - Ulrich Schramm AU - Michael Geissler AU - Jürgen Meyer-ter-Vehn AU - Dietrich Habs AU - Ferenc Krausz TI - Laser-driven electron acceleration in plasmas with few-cycle pulses JO - Comptes Rendus. Physique PY - 2009 SP - 140 EP - 147 VL - 10 IS - 2-3 PB - Elsevier DO - 10.1016/j.crhy.2009.03.014 LA - en ID - CRPHYS_2009__10_2-3_140_0 ER -
%0 Journal Article %A Laszlo Veisz %A Karl Schmid %A Franz Tavella %A Sofia Benavides %A Raphael Tautz %A Daniel Herrmann %A Alexander Buck %A Bernhard Hidding %A Andrius Marcinkevicius %A Ulrich Schramm %A Michael Geissler %A Jürgen Meyer-ter-Vehn %A Dietrich Habs %A Ferenc Krausz %T Laser-driven electron acceleration in plasmas with few-cycle pulses %J Comptes Rendus. Physique %D 2009 %P 140-147 %V 10 %N 2-3 %I Elsevier %R 10.1016/j.crhy.2009.03.014 %G en %F CRPHYS_2009__10_2-3_140_0
Laszlo Veisz; Karl Schmid; Franz Tavella; Sofia Benavides; Raphael Tautz; Daniel Herrmann; Alexander Buck; Bernhard Hidding; Andrius Marcinkevicius; Ulrich Schramm; Michael Geissler; Jürgen Meyer-ter-Vehn; Dietrich Habs; Ferenc Krausz. Laser-driven electron acceleration in plasmas with few-cycle pulses. Comptes Rendus. Physique, Volume 10 (2009) no. 2-3, pp. 140-147. doi : 10.1016/j.crhy.2009.03.014. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2009.03.014/
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