Influence of laser polarization on collective electron dynamics in ultraintense laser-foil interactions

Bruno Gonzalez-Izquierdo, Ross J. Gray, Martin King, Robbie Wilson, Rachel J. Dance, Haydn Powell, David A. MacLellan, John McCreadie, Nicholas M. H. Butler, Steve Hawkes, James S. Green, Chris D. Murphy, Luca C. Stockhausen, David C. Carroll, Nicola Booth, Graeme G. Scott, Marco Borghesi, David Neely, Paul McKenna

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The collective response of electrons in an ultrathin foil target irradiated by an ultraintense (~6x10^{20} W/cm^{2}) laser pulse is investigated experimentally and via 3D particle-in-cell simulations. It is shown that if the target is sufficiently thin that the laser induces significant radiation pressure, but not thin enough to become relativistically transparent to the laser light, the resulting relativistic electron beam is elliptical, with the major axis of the ellipse directed along the laser polarization axis. When the target thickness is decreased such that it becomes relativistically transparent early in the interaction with the laser pulse, diffraction of the transmitted laser light occurs through a so called `relativistic plasma aperture', inducing structure in the spatial-intensity profile of the beam of energetic electrons. It is shown that the electron beam profile can be modified by variation of the target thickness and degree of ellipticity in the laser polarization.
LanguageEnglish
Article numbere33
Number of pages7
JournalHigh Power Laser Science and Engineering
Volume4
DOIs
Publication statusPublished - 27 Sep 2016

Fingerprint

Metal foil
foils
Polarization
Electrons
Lasers
polarization
lasers
electrons
target thickness
interactions
Electron beams
Laser pulses
pulse diffraction
relativistic plasmas
relativistic electron beams
radiation pressure
ellipses
Diffraction
ellipticity
profiles

Keywords

  • laser plasma interaction
  • electron acceleration
  • charged particle dynamics
  • ultrathin foil

Cite this

Gonzalez-Izquierdo, Bruno ; Gray, Ross J. ; King, Martin ; Wilson, Robbie ; Dance, Rachel J. ; Powell, Haydn ; MacLellan, David A. ; McCreadie, John ; Butler, Nicholas M. H. ; Hawkes, Steve ; Green, James S. ; Murphy, Chris D. ; Stockhausen, Luca C. ; Carroll, David C. ; Booth, Nicola ; Scott, Graeme G. ; Borghesi, Marco ; Neely, David ; McKenna, Paul. / Influence of laser polarization on collective electron dynamics in ultraintense laser-foil interactions. In: High Power Laser Science and Engineering. 2016 ; Vol. 4.
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title = "Influence of laser polarization on collective electron dynamics in ultraintense laser-foil interactions",
abstract = "The collective response of electrons in an ultrathin foil target irradiated by an ultraintense (~6x10^{20} W/cm^{2}) laser pulse is investigated experimentally and via 3D particle-in-cell simulations. It is shown that if the target is sufficiently thin that the laser induces significant radiation pressure, but not thin enough to become relativistically transparent to the laser light, the resulting relativistic electron beam is elliptical, with the major axis of the ellipse directed along the laser polarization axis. When the target thickness is decreased such that it becomes relativistically transparent early in the interaction with the laser pulse, diffraction of the transmitted laser light occurs through a so called `relativistic plasma aperture', inducing structure in the spatial-intensity profile of the beam of energetic electrons. It is shown that the electron beam profile can be modified by variation of the target thickness and degree of ellipticity in the laser polarization.",
keywords = "laser plasma interaction, electron acceleration, charged particle dynamics, ultrathin foil",
author = "Bruno Gonzalez-Izquierdo and Gray, {Ross J.} and Martin King and Robbie Wilson and Dance, {Rachel J.} and Haydn Powell and MacLellan, {David A.} and John McCreadie and Butler, {Nicholas M. H.} and Steve Hawkes and Green, {James S.} and Murphy, {Chris D.} and Stockhausen, {Luca C.} and Carroll, {David C.} and Nicola Booth and Scott, {Graeme G.} and Marco Borghesi and David Neely and Paul McKenna",
year = "2016",
month = "9",
day = "27",
doi = "10.1017/hpl.2016.35",
language = "English",
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Gonzalez-Izquierdo, B, Gray, RJ, King, M, Wilson, R, Dance, RJ, Powell, H, MacLellan, DA, McCreadie, J, Butler, NMH, Hawkes, S, Green, JS, Murphy, CD, Stockhausen, LC, Carroll, DC, Booth, N, Scott, GG, Borghesi, M, Neely, D & McKenna, P 2016, 'Influence of laser polarization on collective electron dynamics in ultraintense laser-foil interactions' High Power Laser Science and Engineering, vol. 4, e33. https://doi.org/10.1017/hpl.2016.35

Influence of laser polarization on collective electron dynamics in ultraintense laser-foil interactions. / Gonzalez-Izquierdo, Bruno; Gray, Ross J.; King, Martin; Wilson, Robbie; Dance, Rachel J.; Powell, Haydn; MacLellan, David A.; McCreadie, John; Butler, Nicholas M. H.; Hawkes, Steve; Green, James S.; Murphy, Chris D.; Stockhausen, Luca C.; Carroll, David C.; Booth, Nicola; Scott, Graeme G.; Borghesi, Marco; Neely, David; McKenna, Paul.

In: High Power Laser Science and Engineering, Vol. 4, e33, 27.09.2016.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Influence of laser polarization on collective electron dynamics in ultraintense laser-foil interactions

AU - Gonzalez-Izquierdo, Bruno

AU - Gray, Ross J.

AU - King, Martin

AU - Wilson, Robbie

AU - Dance, Rachel J.

AU - Powell, Haydn

AU - MacLellan, David A.

AU - McCreadie, John

AU - Butler, Nicholas M. H.

AU - Hawkes, Steve

AU - Green, James S.

AU - Murphy, Chris D.

AU - Stockhausen, Luca C.

AU - Carroll, David C.

AU - Booth, Nicola

AU - Scott, Graeme G.

AU - Borghesi, Marco

AU - Neely, David

AU - McKenna, Paul

PY - 2016/9/27

Y1 - 2016/9/27

N2 - The collective response of electrons in an ultrathin foil target irradiated by an ultraintense (~6x10^{20} W/cm^{2}) laser pulse is investigated experimentally and via 3D particle-in-cell simulations. It is shown that if the target is sufficiently thin that the laser induces significant radiation pressure, but not thin enough to become relativistically transparent to the laser light, the resulting relativistic electron beam is elliptical, with the major axis of the ellipse directed along the laser polarization axis. When the target thickness is decreased such that it becomes relativistically transparent early in the interaction with the laser pulse, diffraction of the transmitted laser light occurs through a so called `relativistic plasma aperture', inducing structure in the spatial-intensity profile of the beam of energetic electrons. It is shown that the electron beam profile can be modified by variation of the target thickness and degree of ellipticity in the laser polarization.

AB - The collective response of electrons in an ultrathin foil target irradiated by an ultraintense (~6x10^{20} W/cm^{2}) laser pulse is investigated experimentally and via 3D particle-in-cell simulations. It is shown that if the target is sufficiently thin that the laser induces significant radiation pressure, but not thin enough to become relativistically transparent to the laser light, the resulting relativistic electron beam is elliptical, with the major axis of the ellipse directed along the laser polarization axis. When the target thickness is decreased such that it becomes relativistically transparent early in the interaction with the laser pulse, diffraction of the transmitted laser light occurs through a so called `relativistic plasma aperture', inducing structure in the spatial-intensity profile of the beam of energetic electrons. It is shown that the electron beam profile can be modified by variation of the target thickness and degree of ellipticity in the laser polarization.

KW - laser plasma interaction

KW - electron acceleration

KW - charged particle dynamics

KW - ultrathin foil

U2 - 10.1017/hpl.2016.35

DO - 10.1017/hpl.2016.35

M3 - Article

VL - 4

JO - High Power Laser Science and Engineering

T2 - High Power Laser Science and Engineering

JF - High Power Laser Science and Engineering

SN - 2095-4719

M1 - e33

ER -