Intense-field multiphoton ionization of helium

被引：75

作者：

Parker, JS ^{[1
]}

Smyth, ES ^{[1
]}

Taylor, KT ^{[1
]}

机构：

[1] Queens Univ Belfast, Dept Appl Math & Theoret Phys, Belfast BT7 1NN, Antrim, North Ireland

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1998年 / 31卷 / 14期

关键词：

D O I：

10.1088/0953-4075/31/14/001

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The dynamics of multiphoton ionization of helium are investigated through numerical integration of the two-electron time-dependent Schrodinger equation. Using this work as a benchmark, a new single-active-electron model is introduced that gives agreement with He ionization rates to within a few per cent on average, and gives good agreement with He harmonic generation spectra over a laser intensity range of 0.5 x 10(14) to 8.0 x 10(14) W cm(-2), and frequencies corresponding to four- and five-photon ionization.

引用

页码：L571 / L578

页数：8

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