Radiating electron source generation in ultraintense laser-foil interactions

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A radiating electron source is shown to be created by a laser pulse (with intensity of 10^23 W/cm^2 and duration equal to 30 fs) interacting with a near-critical density plasma. It is shown that the back radiation reaction resulting from high energy synchrotron radiation tends to counteract the action of the ponderomotive force. This enhances the collective dynamics of the radiating electrons in the highest field areas, resulting in the production of a compact radiation source (containing 80% of the synchrotron radiation emission), with an energy on the order of tens of MeV over the laser pulse duration. These phenomena are investigated using a QED-particle-in-cell code, and compared with a kinetic model accounting for the radiation reaction force in the electron distribution function. The results shed new light on electron-photon sources at ultra-high laser intensities and could be tested on future laser facilities.
LanguageEnglish
Article number083117
Number of pages9
JournalPhysics of Plasmas
Volume23
Issue number8
DOIs
Publication statusPublished - 16 Aug 2016

Fingerprint

electron sources
foils
synchrotron radiation
radiation
lasers
ponderomotive forces
interactions
electron distribution
radiation sources
high power lasers
plasma density
pulse duration
electrons
distribution functions
energy
kinetics
photons
pulses

Keywords

  • radiating electron source
  • laser-foil interactions
  • laser pulse
  • laser-plasma interactions
  • radiation reaction
  • electron equation of motion
  • high energy synchrotron radiation
  • particle-in-cell simulations

Cite this

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title = "Radiating electron source generation in ultraintense laser-foil interactions",
abstract = "A radiating electron source is shown to be created by a laser pulse (with intensity of 10^23 W/cm^2 and duration equal to 30 fs) interacting with a near-critical density plasma. It is shown that the back radiation reaction resulting from high energy synchrotron radiation tends to counteract the action of the ponderomotive force. This enhances the collective dynamics of the radiating electrons in the highest field areas, resulting in the production of a compact radiation source (containing 80{\%} of the synchrotron radiation emission), with an energy on the order of tens of MeV over the laser pulse duration. These phenomena are investigated using a QED-particle-in-cell code, and compared with a kinetic model accounting for the radiation reaction force in the electron distribution function. The results shed new light on electron-photon sources at ultra-high laser intensities and could be tested on future laser facilities.",
keywords = "radiating electron source, laser-foil interactions, laser pulse, laser-plasma interactions, radiation reaction, electron equation of motion, high energy synchrotron radiation, particle-in-cell simulations",
author = "R. Capdessus and M. King and P. McKenna",
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Radiating electron source generation in ultraintense laser-foil interactions. / Capdessus, R.; King, M.; McKenna, P.

In: Physics of Plasmas, Vol. 23, No. 8, 083117, 16.08.2016.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Radiating electron source generation in ultraintense laser-foil interactions

AU - Capdessus, R.

AU - King, M.

AU - McKenna, P.

N1 - The following article has been accepted by Physics of Plasmas on 27/07/2016. After it is published, it will be found at http://scitation.aip.org/content/aip/journal/pop.

PY - 2016/8/16

Y1 - 2016/8/16

N2 - A radiating electron source is shown to be created by a laser pulse (with intensity of 10^23 W/cm^2 and duration equal to 30 fs) interacting with a near-critical density plasma. It is shown that the back radiation reaction resulting from high energy synchrotron radiation tends to counteract the action of the ponderomotive force. This enhances the collective dynamics of the radiating electrons in the highest field areas, resulting in the production of a compact radiation source (containing 80% of the synchrotron radiation emission), with an energy on the order of tens of MeV over the laser pulse duration. These phenomena are investigated using a QED-particle-in-cell code, and compared with a kinetic model accounting for the radiation reaction force in the electron distribution function. The results shed new light on electron-photon sources at ultra-high laser intensities and could be tested on future laser facilities.

AB - A radiating electron source is shown to be created by a laser pulse (with intensity of 10^23 W/cm^2 and duration equal to 30 fs) interacting with a near-critical density plasma. It is shown that the back radiation reaction resulting from high energy synchrotron radiation tends to counteract the action of the ponderomotive force. This enhances the collective dynamics of the radiating electrons in the highest field areas, resulting in the production of a compact radiation source (containing 80% of the synchrotron radiation emission), with an energy on the order of tens of MeV over the laser pulse duration. These phenomena are investigated using a QED-particle-in-cell code, and compared with a kinetic model accounting for the radiation reaction force in the electron distribution function. The results shed new light on electron-photon sources at ultra-high laser intensities and could be tested on future laser facilities.

KW - radiating electron source

KW - laser-foil interactions

KW - laser pulse

KW - laser-plasma interactions

KW - radiation reaction

KW - electron equation of motion

KW - high energy synchrotron radiation

KW - particle-in-cell simulations

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