Energy exchange via multi-species streaming in laser-driven ion acceleration

Research output: Contribution to journalArticle

Abstract

Due to the complex electron dynamics and multiple ion acceleration mechanisms that can take place in the interaction of an ultra-intense laser pulse with a thin foil, it is possible for multiple charged particle populations to overlap in space with varying momentum distributions. In certain scenarios this can drive streaming instabilities such as the relativistic Buneman instability and the ion-ion acoustic instability. The potential for such instabilities to occur are demonstrated using particle-in-cell simulations. It is shown that if a population of ions can be accelerated such that it can propagate through other slowly expanding ion populations, energy exchange can occur via the ion-ion acoustic instability.
LanguageEnglish
Number of pages8
JournalPlasma Physics and Controlled Fusion
Publication statusAccepted/In press - 9 Aug 2016

Fingerprint

Ion exchange
energy transfer
Lasers
Ions
lasers
ions
acoustic instability
Acoustics
Charged particles
Metal foil
Laser pulses
foils
Momentum
charged particles
momentum
Electrons
pulses
cells
electrons
simulation

Keywords

  • plasma instabilities
  • laser plasma interaction
  • laser plasma acceleration
  • ion acceleration
  • electron dynamics
  • laser pulse
  • particle-in-cell simulations
  • ion-ion acoustic instability

Cite this

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title = "Energy exchange via multi-species streaming in laser-driven ion acceleration",
abstract = "Due to the complex electron dynamics and multiple ion acceleration mechanisms that can take place in the interaction of an ultra-intense laser pulse with a thin foil, it is possible for multiple charged particle populations to overlap in space with varying momentum distributions. In certain scenarios this can drive streaming instabilities such as the relativistic Buneman instability and the ion-ion acoustic instability. The potential for such instabilities to occur are demonstrated using particle-in-cell simulations. It is shown that if a population of ions can be accelerated such that it can propagate through other slowly expanding ion populations, energy exchange can occur via the ion-ion acoustic instability.",
keywords = "plasma instabilities, laser plasma interaction, laser plasma acceleration, ion acceleration, electron dynamics, laser pulse, particle-in-cell simulations, ion-ion acoustic instability",
author = "M. King and Gray, {R. J.} and Powell, {H. W.} and R. Capdessus and P. McKenna",
note = "This is an author-created, un-copyedited version of an article accepted for publication in Plasma Physics and Controlled Fusion. The publisher is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://iopscience.iop.org/journal/0741-3335",
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TY - JOUR

T1 - Energy exchange via multi-species streaming in laser-driven ion acceleration

AU - King, M.

AU - Gray, R. J.

AU - Powell, H. W.

AU - Capdessus, R.

AU - McKenna, P.

N1 - This is an author-created, un-copyedited version of an article accepted for publication in Plasma Physics and Controlled Fusion. The publisher is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://iopscience.iop.org/journal/0741-3335

PY - 2016/8/9

Y1 - 2016/8/9

N2 - Due to the complex electron dynamics and multiple ion acceleration mechanisms that can take place in the interaction of an ultra-intense laser pulse with a thin foil, it is possible for multiple charged particle populations to overlap in space with varying momentum distributions. In certain scenarios this can drive streaming instabilities such as the relativistic Buneman instability and the ion-ion acoustic instability. The potential for such instabilities to occur are demonstrated using particle-in-cell simulations. It is shown that if a population of ions can be accelerated such that it can propagate through other slowly expanding ion populations, energy exchange can occur via the ion-ion acoustic instability.

AB - Due to the complex electron dynamics and multiple ion acceleration mechanisms that can take place in the interaction of an ultra-intense laser pulse with a thin foil, it is possible for multiple charged particle populations to overlap in space with varying momentum distributions. In certain scenarios this can drive streaming instabilities such as the relativistic Buneman instability and the ion-ion acoustic instability. The potential for such instabilities to occur are demonstrated using particle-in-cell simulations. It is shown that if a population of ions can be accelerated such that it can propagate through other slowly expanding ion populations, energy exchange can occur via the ion-ion acoustic instability.

KW - plasma instabilities

KW - laser plasma interaction

KW - laser plasma acceleration

KW - ion acceleration

KW - electron dynamics

KW - laser pulse

KW - particle-in-cell simulations

KW - ion-ion acoustic instability

UR - http://iopscience.iop.org/journal/0741-3335

M3 - Article

JO - Plasma Physics and Controlled Fusion

T2 - Plasma Physics and Controlled Fusion

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