Laser wakefield acceleration driven by few-cycle laser pulses in overdense plasmas - ENSTA Paris - École nationale supérieure de techniques avancées Paris Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2018

Laser wakefield acceleration driven by few-cycle laser pulses in overdense plasmas

Résumé

We measure the emission of energetic electrons from the interaction between ultrashort laser pulses and a solid density plasma in the relativistic regime. We detect an electron beam that only appears with few-cycle pulses (< 10 fs) and large plasma scale lengths ($L > \lambda_0$). Numerical simulations, in agreement with the experiments, reveal that these electrons are accelerated by a laser wakefield. Plasma waves are indeed resonantly excited by the few-cycle laser pulses in the near-critical-density region of the plasma. Electrons are then injected by ionization into the plasma waves and accelerated to relativistic energies. This study provides an unprecedented insight into the physics happening in the few-cycle regime.

Dates et versions

hal-01817893 , version 1 (18-06-2018)

Identifiants

Citer

N. Zaïm, F. Böhle, M. Bocoum, A. Vernier, S. Haessler, et al.. Laser wakefield acceleration driven by few-cycle laser pulses in overdense plasmas. 2018. ⟨hal-01817893⟩
53 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More