Enhancement and control of laser wakefields via a backward Raman amplifier - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Physics of Plasmas Année : 2018

Enhancement and control of laser wakefields via a backward Raman amplifier

Résumé

The Backward Raman Amplifier (BRA) is proposed as a possible scheme for improving laser driven plasma wakefields. One- and two-dimensional particle-in-cell code simulations and a 3-Wave coupling model are presented and compared to demonstrate how the BRA can be applied to the laser wakefield accelerator (LWFA) in the non-relativistic regime to counteract limitations such as pump depletion and diffraction. This article provides a discussion on optimal parameters for the combination of BRA and LWFA and a prescription for a BRA pump frequency chirp to ensure coupling beyond the particle dephasing limit. Simulation results demonstrate a reduction or alleviation of the effects of diffraction and an increase in wake amplitude and sustainability and provide direct insights into new methods of controlling plasma wakes in LWFA and other applications.
Fichier principal
Vignette du fichier
accepted_manuscript_JLudwig_et_al_PhysPlasmas25_053108.pdf (28.06 Mo) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04449762 , version 1 (10-02-2024)

Identifiants

Citer

J. Ludwig, P.-E. Masson-Laborde, S. Hüller, W. Rozmus, S. Wilks. Enhancement and control of laser wakefields via a backward Raman amplifier. Physics of Plasmas, 2018, 25 (5), pp.053108. ⟨10.1063/1.5023387⟩. ⟨hal-04449762⟩
15 Consultations
2 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More