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Time-resolved measurements of high order harmonics confined by polarization gating

Zair, A; Tcherbakoff, O; Mevel, E; Constant, E; Lopez-Martens, R; Mauritsson, Johan LU ; Johnsson, Per LU and L'Huillier, Anne LU (2004) In Applied Physics B 78(7-8). p.869-872
Abstract
We investigate the temporal confinement of high order harmonic pulses generated by a femtosecond (fs) infrared (IR) pulse with a time varying polarization. We use a set of two birefringent quartz plates to modulate the IR polarization. It produces a short temporal gate of linear polarization where harmonics are efficiently generated during a small fraction of the IR pulse. By rotating one of the plates, the gate width can be continuously varied between 70 fs down to 7 fs. The XUV pulse duration is measured by cross-correlation with a probe IR pulse of 12 fs. When the gate width is decreased, a clear temporal confinement of the XUV emission is observed through the cross correlation signal. This experiment is the first direct experimental... (More)
We investigate the temporal confinement of high order harmonic pulses generated by a femtosecond (fs) infrared (IR) pulse with a time varying polarization. We use a set of two birefringent quartz plates to modulate the IR polarization. It produces a short temporal gate of linear polarization where harmonics are efficiently generated during a small fraction of the IR pulse. By rotating one of the plates, the gate width can be continuously varied between 70 fs down to 7 fs. The XUV pulse duration is measured by cross-correlation with a probe IR pulse of 12 fs. When the gate width is decreased, a clear temporal confinement of the XUV emission is observed through the cross correlation signal. This experiment is the first direct experimental evidence in the temporal domain that the polarization gating technique can be used to significantly shorten the harmonic pulse duration. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Physics B
volume
78
issue
7-8
pages
869 - 872
publisher
Springer
external identifiers
  • wos:000221193200017
  • scopus:2642579272
ISSN
0946-2171
DOI
10.1007/s00340-004-1476-8
language
English
LU publication?
yes
id
cb7b2c98-50c4-4712-9e28-af77edb9894d (old id 280011)
date added to LUP
2007-11-07 08:53:36
date last changed
2017-01-01 04:55:07
@article{cb7b2c98-50c4-4712-9e28-af77edb9894d,
  abstract     = {We investigate the temporal confinement of high order harmonic pulses generated by a femtosecond (fs) infrared (IR) pulse with a time varying polarization. We use a set of two birefringent quartz plates to modulate the IR polarization. It produces a short temporal gate of linear polarization where harmonics are efficiently generated during a small fraction of the IR pulse. By rotating one of the plates, the gate width can be continuously varied between 70 fs down to 7 fs. The XUV pulse duration is measured by cross-correlation with a probe IR pulse of 12 fs. When the gate width is decreased, a clear temporal confinement of the XUV emission is observed through the cross correlation signal. This experiment is the first direct experimental evidence in the temporal domain that the polarization gating technique can be used to significantly shorten the harmonic pulse duration.},
  author       = {Zair, A and Tcherbakoff, O and Mevel, E and Constant, E and Lopez-Martens, R and Mauritsson, Johan and Johnsson, Per and L'Huillier, Anne},
  issn         = {0946-2171},
  language     = {eng},
  number       = {7-8},
  pages        = {869--872},
  publisher    = {Springer},
  series       = {Applied Physics B},
  title        = {Time-resolved measurements of high order harmonics confined by polarization gating},
  url          = {http://dx.doi.org/10.1007/s00340-004-1476-8},
  volume       = {78},
  year         = {2004},
}