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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/12246713
Record Status
Checked
Record Id
12246713
Title
The influence of preformed plasma on the surface-guided lateral transport of energetic electrons in ultraintense short laser–foil interactions
Contributors
XH Yuan (Strathclyde Univ.)
,
DC Carroll (STFC Rutherford Appleton Lab.)
,
J Zheng
,
JL Liu
,
RJ Gray (Strathclyde Univ.)
,
CM Brenner (STFC Rutherford Appleton Lab. and Strathclyde Univ.)
,
M Coury (Strathclyde Univ.)
,
LM Chen
,
Y Fang
,
O Tresca (Strathclyde Univ.)
,
B Zielbauer
,
T Kühl
,
YT Li
,
D Neely (STFC Rutherford Appleton Lab. and Strathclyde Univ.)
,
ZM Sheng
,
P McKenna (Strathclyde Univ.)
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.
Organisation
CLF
,
CI
,
STFC
Keywords
Funding Information
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Language
English (EN)
Type
Details
URI(s)
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Year
Journal Article
Plasma Phys Contr F
56, no. 5 (2014): 055001.
doi:10.1088/0741-3335/56/5/055001
2014
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