Electron drift directions in strong-field double ionization of atoms

被引：38

作者：

Haan, S. L. ^{[1
]}

Smith, Z. S. ^{[1
]}

Shomsky, K. N. ^{[1
]}

Plantinga, P. W. ^{[1
]}

机构：

[1] Calvin Coll, Dept Phys & Astron, Grand Rapids, MI 49546 USA

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2009年 / 42卷 / 13期

基金：

美国国家科学基金会;

关键词：

NONSEQUENTIAL DOUBLE-IONIZATION; ION MOMENTUM DISTRIBUTIONS; STRONG LASER FIELDS; THRESHOLD IONIZATION; MULTIPLE IONIZATION; RECOIL-ION; PULSES;

D O I：

10.1088/0953-4075/42/13/134009

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Longitudinal momentum spectra and electron drift directions are considered for several laser wavelengths in non-sequential double ionization of helium using three-dimensional classical ensembles. In this model, the familiar doublet for wavelength 800 nm and intensities of order 5 x 10(14) W cm(-2) becomes a triplet for wavelength 1314 nm, then a doublet for 2017 nm. The results are explained based on whether the post-ionization impulse from the laser results in backward drift for one or both electrons.

引用

页数：9

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