Multiple Ionization Bursts in Laser-Driven Hydrogen Molecular Ion

被引：81

作者：

Takemoto, Norio ^{[1
]}

Becker, Andreas

机构：

[1] Joint Inst Lab Astrophys, Boulder, CO 80309 USA

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 20期

关键词：

ELECTRONIC-TRANSITIONS; FIELDS;

D O I：

10.1103/PhysRevLett.105.203004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Theoretical study on H-2(+) in an intense infrared laser field on the attosecond time scale reveals that the molecular ion shows multiple bursts of ionization within a half-cycle of the laser field oscillation, in contrast to the widely accepted tunnel ionization picture for an atom. These bursts are found to be induced by transient localization of the electron at one of the nuclei, and a relation between the time instants of the localization and the vector potential of the laser light is derived. A scheme is proposed to probe the localization dynamics by an extreme ultraviolet laser pulse.

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页数：4

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