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High-order Harmonic-generation In Rare-gases With An Intense Short-pulse Laser

Wahlström, Claes-Göran LU ; Larsson, Jörgen LU ; Persson, Anders LU ; Starczewski, T; Svanberg, Sune LU ; Salieres, P; Balcou, P and L'Huillier, Anne LU (1993) In Physical Review A (Atomic, Molecular and Optical Physics) 48(6). p.4709-4720
Abstract
We present experimental studies of high-order harmonic generation in the rare gases performed with a short-pulse titanium sapphire laser operating at 794 nm in the 10(14)-10(15) W/cm2 range. The harmonic yields generated in neon and in argon are studied for all orders as a function of the laser intensity. They vary first rather steeply, in the cutoff region, then much more slowly in the plateau region, and, finally, they saturate when the medium gets ionized. The dependence of the high-order harmonic cutoff with the laser intensity in neon and argon is found to be lower than that predicted in single-atom theories. We observe high-order harmonics in argon and xenon (up to the 65th and 45th, respectively) at 10(15) W/cm2, which we attribute... (More)
We present experimental studies of high-order harmonic generation in the rare gases performed with a short-pulse titanium sapphire laser operating at 794 nm in the 10(14)-10(15) W/cm2 range. The harmonic yields generated in neon and in argon are studied for all orders as a function of the laser intensity. They vary first rather steeply, in the cutoff region, then much more slowly in the plateau region, and, finally, they saturate when the medium gets ionized. The dependence of the high-order harmonic cutoff with the laser intensity in neon and argon is found to be lower than that predicted in single-atom theories. We observe high-order harmonics in argon and xenon (up to the 65th and 45th, respectively) at 10(15) W/cm2, which we attribute to harmonic generation from ions. We also show how the harmonic and fundamental spectra get blueshifted when the medium becomes ionized. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review A (Atomic, Molecular and Optical Physics)
volume
48
issue
6
pages
4709 - 4720
publisher
American Physical Society (APS)
external identifiers
  • scopus:0001578412
ISSN
1050-2947
DOI
10.1103/PhysRevA.48.4709
language
English
LU publication?
yes
id
7f3045f7-4e95-4e4e-8570-f837851abe25 (old id 2259669)
date added to LUP
2012-02-07 00:04:38
date last changed
2017-07-09 04:34:07
@article{7f3045f7-4e95-4e4e-8570-f837851abe25,
  abstract     = {We present experimental studies of high-order harmonic generation in the rare gases performed with a short-pulse titanium sapphire laser operating at 794 nm in the 10(14)-10(15) W/cm2 range. The harmonic yields generated in neon and in argon are studied for all orders as a function of the laser intensity. They vary first rather steeply, in the cutoff region, then much more slowly in the plateau region, and, finally, they saturate when the medium gets ionized. The dependence of the high-order harmonic cutoff with the laser intensity in neon and argon is found to be lower than that predicted in single-atom theories. We observe high-order harmonics in argon and xenon (up to the 65th and 45th, respectively) at 10(15) W/cm2, which we attribute to harmonic generation from ions. We also show how the harmonic and fundamental spectra get blueshifted when the medium becomes ionized.},
  author       = {Wahlström, Claes-Göran and Larsson, Jörgen and Persson, Anders and Starczewski, T and Svanberg, Sune and Salieres, P and Balcou, P and L'Huillier, Anne},
  issn         = {1050-2947},
  language     = {eng},
  number       = {6},
  pages        = {4709--4720},
  publisher    = {American Physical Society (APS)},
  series       = {Physical Review A (Atomic, Molecular and Optical Physics)},
  title        = {High-order Harmonic-generation In Rare-gases With An Intense Short-pulse Laser},
  url          = {http://dx.doi.org/10.1103/PhysRevA.48.4709},
  volume       = {48},
  year         = {1993},
}