Anticorrelation between Ion Acceleration and Nonlinear Coherent Structures from Laser-Underdense Plasma Interaction

Sylla, Francois and Flacco, A. and Kahaly, S. and Veltcheva, M. and Lifschitz, A. and Sánchez Arriaga, Gonzalo and Lefebvre, E. and Malka, V. (2012). Anticorrelation between Ion Acceleration and Nonlinear Coherent Structures from Laser-Underdense Plasma Interaction. "Physical Review Letters", v. 108 ; pp. 115003-1. ISSN 0031-9007. https://doi.org/10.1103/PhysRevLett.108.115003.

Description

Title: Anticorrelation between Ion Acceleration and Nonlinear Coherent Structures from Laser-Underdense Plasma Interaction
Author/s:
  • Sylla, Francois
  • Flacco, A.
  • Kahaly, S.
  • Veltcheva, M.
  • Lifschitz, A.
  • Sánchez Arriaga, Gonzalo
  • Lefebvre, E.
  • Malka, V.
Item Type: Article
Título de Revista/Publicación: Physical Review Letters
Date: 13 March 2012
ISSN: 0031-9007
Volume: 108
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Física Aplicada a la Ingeniería Aeronáutica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

In laser-plasma experiments, we observed that ion acceleration from the Coulomb explosion of the plasma channel bored by the laser, is prevented when multiple plasma instabilities such as filamentation and hosing, and nonlinear coherent structures (vortices/post-solitons) appear in the wake of an ultrashort laser pulse. The tailoring of the longitudinal plasma density ramp allows us to control the onset of these insabilities. We deduced that the laser pulse is depleted into these structures in our conditions, when a plasma at about 10% of the critical density exhibits a gradient on the order of 250 {\mu}m (gaussian fit), thus hindering the acceleration. A promising experimental setup with a long pulse is demonstrated enabling the excitation of an isolated coherent structure for polarimetric measurements and, in further perspectives, parametric studies of ion plasma acceleration efficiency.

Funding Projects

TypeCodeAcronymLeaderTitle
FP7226424PARISUnspecifiedARticle accelerators with Intense lasers for Science (PARIS)

More information

Item ID: 15555
DC Identifier: http://oa.upm.es/15555/
OAI Identifier: oai:oa.upm.es:15555
DOI: 10.1103/PhysRevLett.108.115003
Official URL: http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.108.115003
Deposited by: Memoria Investigacion
Deposited on: 10 Apr 2014 16:43
Last Modified: 03 Nov 2014 13:55
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