Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Toward a self-consistent model of the interaction between an ultra-intense, normally incident laser pulse with an overdense plasma
Year:2013
Research Areas
  • Physics - Plasma and fluid
Information
Abstract
Following a recent work by Sanz et al. [Phys. Rev. E 85, 046411 (2012)], we elaborate upon a one-dimensional model describing the interaction between an ultra-intense, normally incident laser pulse and an overdense plasma. The analytical solutions of the reflected laser field, the electrostatic field, and the plasma surface oscillation are obtained within the cold-fluid approximation. The high-order harmonic spectrum is calculated from the exact solution of the plasma surface oscillations. In agreement with particle-in-cell simulations, two regimes of harmonic generation are predicted: for moderately relativistic laser intensities, or high plasma densities, the harmonic spectrum is determined by the discontinuity in the derivative of the reflected field when the electron plasma boundary oscillates across the fixed ion boundary. For higher intensities, the electron plasma boundary is confined inside the ion region and oscillates at relativistic velocities, giving rise to a train of reflected attosecond pulses. In both cases, the harmonic spectrum obeys an asymptotic ?4 scaling. The acceleration of electrons and the related laser absorption efficiency are computed by a test particle method. The model self-consistently reproduces the transition between the ?anomalous skin effect? and the ?J?×?B? heating predicted by particle-in-cell simulations. Analytical estimates of the different scalings are presented.
International
Si
JCR
Si
Title
PHYSICS OF PLASMAS
ISBN
1070-664X
Impact factor JCR
2,147
Impact info
Volume
20
10.1063/1.4807335
Journal number
5
From page
053107-1
To page
053107-14
Month
MAYO
Ranking
0
Participants
  • Autor: Arnaud Philippe Henri Debayle . (UPM)
  • Autor: Fco. Javier Sanz Recio (UPM)
  • Autor: L. Gremillet
  • Autor: Kunioki Mima . (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Investigación en Fusión Inercial y Física de Plasmas
  • Departamento: Física Aplicada a la Ingeniería Aeronáutica
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)