Double ionization in a one-cycle laser pulse

被引：22

作者：

Dörr, M ^{[1
]}

机构：

[1] Max Born Inst, D-12489 Berlin, Germany

来源：

OPTICS EXPRESS | 2000年 / 6卷 / 05期

关键词：

D O I：

10.1364/OE.6.000111

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The time-dependent Schrodinger equation is solved for a 1Dx1D two-electron model helium atom subject to a low-frequency short, intense laser pulse. A half-cycle pulse leads to strong single but no double ionization. A full-cycle pulse leads to double ionization which begins precisely at the classical return time for the first ejected electron. When the excursion range for the first electron is truncated, the double ionization at later times, corresponding to longer excursions, disappears. When the field near the nucleus is turned off during the return of the first electron, double ionization persists. (C) 2000 Optical Society of America.

引用

页码：111 / 116

页数：6

共 17 条

[1] Two-dimensional, two-electron model atom in a laser pulse: Exact treatment, single-active-electron analysis, time-dependent density-functional theory, classical calculations, and nonsequential ionization [J].