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Memorias de investigación
Artículos en revistas:
Toward a self-consistent model of the interaction between an ultra-intense, normally incident laser pulse with an overdense plasma
Año:2013
Áreas de investigación
  • Fisica pl -- plasmas and fluidos
Datos
Descripción
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.
Internacional
Si
JCR del ISI
Si
Título de la revista
PHYSICS OF PLASMAS
ISSN
1070-664X
Factor de impacto JCR
2,147
Información de impacto
Volumen
20
DOI
10.1063/1.4807335
Número de revista
5
Desde la página
053107-1
Hasta la página
053107-14
Mes
MAYO
Ranking
0
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Arnaud Philippe Henri Debayle . (UPM)
  • Autor: Fco. Javier Sanz Recio (UPM)
  • Autor: L. Gremillet
  • Autor: Kunioki Mima . (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Investigación en Fusión Inercial y Física de Plasmas
  • Departamento: Física Aplicada a la Ingeniería Aeronáutica
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