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High-intensity laser-driven proton acceleration: influence of pulse contrast

McKenna, P; Lindau, Filip LU ; Lundh, Olle LU ; Neely, D; Persson, Anders LU and Wahlström, Claes-Göran LU (2006) In Royal Society of London. Philosophical Transactions A. Mathematical, Physical and Engineering Sciences 364(1840). p.711-723
Abstract
Proton acceleration from the interaction of ultra-short laser pulses with thin foil targets at intensities greater than 10(18) W cm(-2) is discussed. An overview of the physical processes giving rise to the generation of protons with multi-MeV energies, in well defined beams with excellent spatial quality, is presented. Specifically, the discussion centres on the influence of laser pulse contrast on the spatial and energy distributions of accelerated proton beams. Results from an ongoing experimental investigation of proton acceleration using the 10 Hz multi-terawatt Ti : sapphire laser (35 fs, 35 TW) at the Lund Laser Centre are discussed. It is demonstrated that a window of amplified spontaneous emission (ASE) conditions exist, for which... (More)
Proton acceleration from the interaction of ultra-short laser pulses with thin foil targets at intensities greater than 10(18) W cm(-2) is discussed. An overview of the physical processes giving rise to the generation of protons with multi-MeV energies, in well defined beams with excellent spatial quality, is presented. Specifically, the discussion centres on the influence of laser pulse contrast on the spatial and energy distributions of accelerated proton beams. Results from an ongoing experimental investigation of proton acceleration using the 10 Hz multi-terawatt Ti : sapphire laser (35 fs, 35 TW) at the Lund Laser Centre are discussed. It is demonstrated that a window of amplified spontaneous emission (ASE) conditions exist, for which the direction of proton emission is sensitive to the ASE-pedestal preceding the peak of the laser pulse, and that by significantly improving the temporal contrast, using plasma mirrors, efficient proton acceleration is observed from target foils with thickness less than 50 nm. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
laser-plasma interactions, laser-particle acceleration, proton beam
in
Royal Society of London. Philosophical Transactions A. Mathematical, Physical and Engineering Sciences
volume
364
issue
1840
pages
711 - 723
publisher
Royal Society
external identifiers
  • wos:000235974100013
  • pmid:16483959
  • scopus:33645295253
ISSN
1364-503X
DOI
10.1098/rsta.2005.1733
language
English
LU publication?
yes
id
d4386789-ac35-4123-94c4-2fe6f77ed346 (old id 416282)
date added to LUP
2007-10-10 11:53:54
date last changed
2019-05-12 04:06:32
@article{d4386789-ac35-4123-94c4-2fe6f77ed346,
  abstract     = {Proton acceleration from the interaction of ultra-short laser pulses with thin foil targets at intensities greater than 10(18) W cm(-2) is discussed. An overview of the physical processes giving rise to the generation of protons with multi-MeV energies, in well defined beams with excellent spatial quality, is presented. Specifically, the discussion centres on the influence of laser pulse contrast on the spatial and energy distributions of accelerated proton beams. Results from an ongoing experimental investigation of proton acceleration using the 10 Hz multi-terawatt Ti : sapphire laser (35 fs, 35 TW) at the Lund Laser Centre are discussed. It is demonstrated that a window of amplified spontaneous emission (ASE) conditions exist, for which the direction of proton emission is sensitive to the ASE-pedestal preceding the peak of the laser pulse, and that by significantly improving the temporal contrast, using plasma mirrors, efficient proton acceleration is observed from target foils with thickness less than 50 nm.},
  author       = {McKenna, P and Lindau, Filip and Lundh, Olle and Neely, D and Persson, Anders and Wahlström, Claes-Göran},
  issn         = {1364-503X},
  keyword      = {laser-plasma interactions,laser-particle acceleration,proton beam},
  language     = {eng},
  number       = {1840},
  pages        = {711--723},
  publisher    = {Royal Society},
  series       = {Royal Society of London. Philosophical Transactions A. Mathematical, Physical and Engineering Sciences},
  title        = {High-intensity laser-driven proton acceleration: influence of pulse contrast},
  url          = {http://dx.doi.org/10.1098/rsta.2005.1733},
  volume       = {364},
  year         = {2006},
}