Temporal dependence of high-order harmonics in the presence of strong ionization

被引:56
作者
Bouhal, A [1 ]
Salieres, P
Breger, P
Agostini, P
Hamoniaux, G
Mysyrowicz, A
Antonetti, A
Constantinescu, R
Muller, HG
机构
[1] ENSTA, Ecole Polytech, Lab Opt Appl, F-91125 Palaiseau, France
[2] CEA Saclay, DRECAM, DSM, Serv Photons Atomes & Mol, F-91191 Gif Sur Yvette, France
[3] FOM, Inst Atom & Mol Phys, NL-1098 SJ Amsterdam, Netherlands
来源
PHYSICAL REVIEW A | 1998年 / 58卷 / 01期
关键词
D O I
10.1103/PhysRevA.58.389
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The temporal behavior of the 19th harmonic of a Ti:sapphire laser generated in argon was investigated by a cross-correlation technique at intensities close to saturation. Pulses about half as long as predicted on the basis of the scaling law of the atomic dipole strength on intensity were found. Analysis shows that this is a consequence of both the intensity-dependent dipole phase and the depletion of the medium by ionization.
引用
收藏
页码:389 / 399
页数:11
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