Double-electron above threshold ionization of helium

被引：135

作者：

Parker, JS ^{[1
]}

Moore, LR ^{[1
]}

Meharg, KJ ^{[1
]}

Dundas, D ^{[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 | 2001年 / 34卷 / 03期

关键词：

D O I：

10.1088/0953-4075/34/3/103

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present calculations of intense-field multiphoton ionization processes in helium at XUV wavelengths. The calculations are obtained from a full-dimensional integration of the two-electron time-dependent Schrodinger equation. A momentum-space analysis of the ionizing two-electron wavepacket reveals the existence of double-electron above threshold ionization (DATI). In momentum-space two distinct forms of DAITI are resolved, namely non-sequential and sequential. In non-sequential DATI correlated electrons resonantly absorb and share energy in integer units of h omega (laser).

引用

页码：L69 / L78

页数：10

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