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Spectral shaping of attosecond pulses using two-colour laser fields

Mansten, Erik LU ; Dahlström, Marcus LU ; Johnsson, Per LU ; Swoboda, Marko LU ; L'Huillier, Anne LU and Mauritsson, Johan LU (2008) In New Journal of Physics 10.
Abstract
We use a strong two-colour laser field composed of the fundamental (800 nm) and the second harmonic (400 nm) of an infrared (IR) laser field to generate attosecond pulses with controlled spectral and temporal properties. With a second-harmonic intensity equal to 15% of the IR intensity the second-harmonic field is strong enough to significantly alter and control the electron trajectories in the generation process. This enables us to tune the central photon energy of the attosecond pulses by changing the phase difference between the IR and the second-harmonic fields. In the time domain the radiation is emitted as a sequence of pulses separated by a full IR cycle. We also perform calculations showing that the effect of even stronger... (More)
We use a strong two-colour laser field composed of the fundamental (800 nm) and the second harmonic (400 nm) of an infrared (IR) laser field to generate attosecond pulses with controlled spectral and temporal properties. With a second-harmonic intensity equal to 15% of the IR intensity the second-harmonic field is strong enough to significantly alter and control the electron trajectories in the generation process. This enables us to tune the central photon energy of the attosecond pulses by changing the phase difference between the IR and the second-harmonic fields. In the time domain the radiation is emitted as a sequence of pulses separated by a full IR cycle. We also perform calculations showing that the effect of even stronger second-harmonic fields leads to an extended tunable range under conditions that are experimentally feasible. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
New Journal of Physics
volume
10
publisher
IOP Publishing Ltd.
external identifiers
  • wos:000258927700005
  • scopus:50949120684
ISSN
1367-2630
DOI
10.1088/1367-2630/10/8/083041
language
English
LU publication?
yes
id
a284e47e-58b5-4f54-b9f6-6ce9c24e6a1b (old id 1247197)
date added to LUP
2008-11-11 10:05:04
date last changed
2017-10-01 03:59:42
@article{a284e47e-58b5-4f54-b9f6-6ce9c24e6a1b,
  abstract     = {We use a strong two-colour laser field composed of the fundamental (800 nm) and the second harmonic (400 nm) of an infrared (IR) laser field to generate attosecond pulses with controlled spectral and temporal properties. With a second-harmonic intensity equal to 15% of the IR intensity the second-harmonic field is strong enough to significantly alter and control the electron trajectories in the generation process. This enables us to tune the central photon energy of the attosecond pulses by changing the phase difference between the IR and the second-harmonic fields. In the time domain the radiation is emitted as a sequence of pulses separated by a full IR cycle. We also perform calculations showing that the effect of even stronger second-harmonic fields leads to an extended tunable range under conditions that are experimentally feasible.},
  author       = {Mansten, Erik and Dahlström, Marcus and Johnsson, Per and Swoboda, Marko and L'Huillier, Anne and Mauritsson, Johan},
  issn         = {1367-2630},
  language     = {eng},
  publisher    = {IOP Publishing Ltd.},
  series       = {New Journal of Physics},
  title        = {Spectral shaping of attosecond pulses using two-colour laser fields},
  url          = {http://dx.doi.org/10.1088/1367-2630/10/8/083041},
  volume       = {10},
  year         = {2008},
}