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Numerical Modeling of the Spatial Profiles of High-order Harmonics

Muffett, J. E; Wahlström, Claes-Göran LU and Hutchinson, M. H. R (1994) In Journal of Physics B: Atomic, Molecular and Optical Physics 27(23). p.5693-5706
Abstract
The far-field spatial distributions of high-order harmonics in an ionized medium have been investigated using a computer model that includes both the single atom effects and the collective effects of the medium. The results show that depletion of the non-linear medium due to ionization and radial phase variations across the gas jet cause broadening and complicated structures in the far-field spatial distributions. These phase variations are due to three factors: focusing, ionization, i.e. depletion of the non-linear medium and electron dispersion, and intensity-dependent phase variations of the atomic dipoles.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physics B: Atomic, Molecular and Optical Physics
volume
27
issue
23
pages
5693 - 5706
publisher
IOP Publishing
external identifiers
  • Scopus:0028730804
ISSN
0953-4075
DOI
10.1088/0953-4075/27/23/013
language
English
LU publication?
yes
id
03948cb9-5f6a-4292-8c45-c074c31d1b21 (old id 2259021)
date added to LUP
2012-02-17 22:58:21
date last changed
2016-10-13 04:31:02
@misc{03948cb9-5f6a-4292-8c45-c074c31d1b21,
  abstract     = {The far-field spatial distributions of high-order harmonics in an ionized medium have been investigated using a computer model that includes both the single atom effects and the collective effects of the medium. The results show that depletion of the non-linear medium due to ionization and radial phase variations across the gas jet cause broadening and complicated structures in the far-field spatial distributions. These phase variations are due to three factors: focusing, ionization, i.e. depletion of the non-linear medium and electron dispersion, and intensity-dependent phase variations of the atomic dipoles.},
  author       = {Muffett, J. E and Wahlström, Claes-Göran and Hutchinson, M. H. R},
  issn         = {0953-4075},
  language     = {eng},
  number       = {23},
  pages        = {5693--5706},
  publisher    = {ARRAY(0x8f88620)},
  series       = {Journal of Physics B: Atomic, Molecular and Optical Physics},
  title        = {Numerical Modeling of the Spatial Profiles of High-order Harmonics},
  url          = {http://dx.doi.org/10.1088/0953-4075/27/23/013},
  volume       = {27},
  year         = {1994},
}