Frustrated double ionization in two-electron triatomic molecules

被引：23

作者：

Chen, A. ^{[1
]}

Price, H. ^{[1
]}

Staudte, A. ^{[2
,3
]}

Emmanouilidou, A. ^{[1
]}

机构：

[1] UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England

[2] Univ Ottawa, Joint Lab Attosecond Sci, 100 Sussex Dr, Ottawa, ON K1A 0R6, Canada

[3] CNR, 100 Sussex Dr, Ottawa, ON K1A 0R6, Canada

来源：

PHYSICAL REVIEW A | 2016年 / 94卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

ENHANCED IONIZATION; LASER FIELDS; MODEL; H-3+;

D O I：

10.1103/PhysRevA.94.043408

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Using a semiclassical model, we investigate frustrated double ionization (FDI) in D-3(+), a two-electron triatomic molecule, when driven by an intense, linearly polarized, near-infrared (800 nm) laser field. We compute the kinetic energy release of the nuclei and find a good agreement between experiment and our model. We explore the two pathways of FDI and show that, with increasing field strength, over-the-barrier ionization overtakes tunnel ionization as the underlying mechanism of FDI. Moreover, we compute the angular distribution of the ion fragments for FDI and identify a feature that can potentially be observed experimentally and is a signature of only one of the two pathways of FDI.

引用

页数：5

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