Ionization of atomic hydrogen in strong infrared laser fields

被引：69

作者：

Grum-Grzhimailo, Alexei N. ^{[1
,3
]}

Abeln, Brant ^{[1
]}

Bartschat, Klaus ^{[1
]}

Weflen, Daniel ^{[1
]}

Urness, Timothy ^{[2
]}

机构：

[1] Drake Univ, Dept Phys & Astron, Des Moines, IA 50311 USA

[2] Drake Univ, Dept Math & Comp Sci, Des Moines, IA 50311 USA

[3] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow 119991, Russia

来源：

PHYSICAL REVIEW A | 2010年 / 81卷 / 04期

基金：

美国国家科学基金会;

关键词：

NUMERICAL-SOLUTION; COUPLED EQUATIONS; PHOTOIONIZATION; CONTINUUM;

D O I：

10.1103/PhysRevA.81.043408

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have used the matrix iteration method of Nurhuda and Faisal [Phys. Rev. A 60, 3125 (1999)] to treat ionization of atomic hydrogen by a strong laser pulse. After testing our predictions against a variety of previous calculations, we present ejected- electron spectra as well as angular distributions for few-cycle infrared laser pulses with peak intensities of up to 10(15) W/cm(2). It is shown that the convergence of the results with the number of partial waves is a serious issue, which can be managed in a satisfactory way by using the velocity form of the electric dipole operator in connection with an efficient time-propagation scheme.

引用

页数：9

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