The influence of preformed plasma on the surface-guided lateral transport of energetic electrons in ultraintense short laser-foil interactions

X.H. Yuan, D.C. Carroll, Jun J. Zheng, J L Liu, R.J. Gray, C.M. Brenner, M. Coury, L.M. Chen, Y Fang, O. O. Tresca, Bernhard B. Zielbauer, Th U. T.U. Kühl, Y.T. Li, David Neely, Zheng-Ming Sheng, Paul McKenna

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The lateral transport patterns of energetic electrons in thin foil targets irradiated with relativistically intense, picosecond laser pulses with different peak-to-pedestal intensity contrast ratios are reported. For 'low contrast' pulses, a large current of energetic electrons is found to be transported along the target front surface, due to the formation of strong quasi-static electric and magnetic fields. This is distinctly different from the case with 'high contrast' pulses, where energetic electrons are spatially confined. Although this lateral transport reduces the efficiency of the laser energy coupling into ion and radiation production in the region of the laser focus, it can play an important role in directing energy transport in advanced fast ignition schemes involving hollow cone targets and also in heating the target (to generate states of warm dense matter) in regions far from the drive laser focus.
LanguageEnglish
Article number055001
Number of pages6
JournalPlasma Physics and Controlled Fusion
Volume56
Issue number5
DOIs
Publication statusPublished - 9 Apr 2014

Fingerprint

Metal foil
foils
Plasmas
Electrons
Lasers
lasers
electrons
pulses
interactions
Ignition
Cones
Laser pulses
Electric fields
Magnetic fields
ignition
Radiation
Heating
hollow
cones
Ions

Keywords

  • fast electron lateral transport
  • proton acceleration
  • X-ray spectroscopy
  • preformed plasma
  • surface guided lateral transport
  • energetic electrons
  • short laser foil
  • ultraintense

Cite this

Yuan, X.H. ; Carroll, D.C. ; Zheng, Jun J. ; Liu, J L ; Gray, R.J. ; Brenner, C.M. ; Coury, M. ; Chen, L.M. ; Fang, Y ; Tresca, O. O. ; Zielbauer, Bernhard B. ; Kühl, Th U. T.U. ; Li, Y.T. ; Neely, David ; Sheng, Zheng-Ming ; McKenna, Paul. / The influence of preformed plasma on the surface-guided lateral transport of energetic electrons in ultraintense short laser-foil interactions. In: Plasma Physics and Controlled Fusion. 2014 ; Vol. 56, No. 5.
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abstract = "The lateral transport patterns of energetic electrons in thin foil targets irradiated with relativistically intense, picosecond laser pulses with different peak-to-pedestal intensity contrast ratios are reported. For 'low contrast' pulses, a large current of energetic electrons is found to be transported along the target front surface, due to the formation of strong quasi-static electric and magnetic fields. This is distinctly different from the case with 'high contrast' pulses, where energetic electrons are spatially confined. Although this lateral transport reduces the efficiency of the laser energy coupling into ion and radiation production in the region of the laser focus, it can play an important role in directing energy transport in advanced fast ignition schemes involving hollow cone targets and also in heating the target (to generate states of warm dense matter) in regions far from the drive laser focus.",
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The influence of preformed plasma on the surface-guided lateral transport of energetic electrons in ultraintense short laser-foil interactions. / Yuan, X.H.; Carroll, D.C.; Zheng, Jun J.; Liu, J L ; Gray, R.J.; Brenner, C.M.; Coury, M.; Chen, L.M. ; Fang, Y; Tresca, O. O.; Zielbauer, Bernhard B.; Kühl, Th U. T.U.; Li, Y.T.; Neely, David; Sheng, Zheng-Ming; McKenna, Paul.

In: Plasma Physics and Controlled Fusion, Vol. 56, No. 5, 055001, 09.04.2014.

Research output: Contribution to journalArticle

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AU - Gray, R.J.

AU - Brenner, C.M.

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AU - Chen, L.M.

AU - Fang, Y

AU - Tresca, O. O.

AU - Zielbauer, Bernhard B.

AU - Kühl, Th U. T.U.

AU - Li, Y.T.

AU - Neely, David

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