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Laser-accelerated protons with energy dependent beam direction

Lindau, Filip LU ; Lundh, Olle LU ; Persson, Anders LU ; McKenna, Paul; Osvay, K; Batani, D and Wahlström, Claes-Göran LU (2005) In Physical Review Letters 95(175002). p.1-175002
Abstract
The spatial distribution of protons, accelerated by intense femtosecond laser pulses interacting with thin target foils under oblique irradiation are investigated. Under certain conditions, the proton beams are directed away from the target normal. This deviation is towards the laser forward direction, with an angle that increases with the level and duration of the amplified spontaneous emission pedestal before the main laser pulse. In addition, for a given laser pulse, this beam deviation increases with proton energy. The observations are discussed in terms of different electron acceleration mechanisms and target normal sheath acceleration, in combination with a laser-controllable shock wave locally deforming the target rear surface.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
95
issue
175002
pages
1 - 175002
publisher
American Physical Society
external identifiers
  • wos:000232724400037
  • scopus:28844454322
ISSN
1079-7114
DOI
10.1103/PhysRevLett.95.175002
language
English
LU publication?
yes
id
986ede0c-f243-461e-99ef-bb3d34c0ca6b (old id 760766)
date added to LUP
2007-12-17 22:30:05
date last changed
2017-05-28 03:30:46
@article{986ede0c-f243-461e-99ef-bb3d34c0ca6b,
  abstract     = {The spatial distribution of protons, accelerated by intense femtosecond laser pulses interacting with thin target foils under oblique irradiation are investigated. Under certain conditions, the proton beams are directed away from the target normal. This deviation is towards the laser forward direction, with an angle that increases with the level and duration of the amplified spontaneous emission pedestal before the main laser pulse. In addition, for a given laser pulse, this beam deviation increases with proton energy. The observations are discussed in terms of different electron acceleration mechanisms and target normal sheath acceleration, in combination with a laser-controllable shock wave locally deforming the target rear surface.},
  author       = {Lindau, Filip and Lundh, Olle and Persson, Anders and McKenna, Paul and Osvay, K and Batani, D and Wahlström, Claes-Göran},
  issn         = {1079-7114},
  language     = {eng},
  number       = {175002},
  pages        = {1--175002},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Laser-accelerated protons with energy dependent beam direction},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.95.175002},
  volume       = {95},
  year         = {2005},
}