Dynamic modification of the fragmentation of autoionizing states of O2+

被引：14

作者：

Cao, W. ^{[1
]}

Laurent, G. ^{[1
]}

De, S. ^{[1
]}

Schoeffler, M. ^{[2
]}

Jahnke, T. ^{[3
]}

Alnaser, A. S. ^{[4
]}

Bocharova, I. A. ^{[2
]}

Stuck, C. ^{[3
]}

Ray, D. ^{[1
]}

Kling, M. F. ^{[1
]}

Ben-Itzhak, I. ^{[1
]}

Weber, Th. ^{[2
]}

Landers, A. L. ^{[5
]}

Belkacem, A. ^{[2
]}

Doerner, R. ^{[3
]}

Orel, A. E. ^{[6
]}

Rescigno, T. N. ^{[2
]}

Cocke, C. L. ^{[1
]}

机构：

[1] Kansas State Univ, Dept Phys, JR Macdonald Lab, Manhattan, KS 66506 USA

[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[3] Goethe Univ Frankfurt, Inst Kernphys, D-60438 Frankfurt, Germany

[4] Amer Univ Sharjah, Dept Phys, Sharjah, U Arab Emirates

[5] Auburn Univ, Dept Phys, Auburn, AL 36849 USA

[6] Univ Calif Davis, Dept Appl Sci, Davis, CA 95616 USA

来源：

PHYSICAL REVIEW A | 2011年 / 84卷 / 05期

基金：

美国国家科学基金会;

关键词：

DOUBLE-IONIZATION; SPECTROSCOPY;

D O I：

10.1103/PhysRevA.84.053406

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The dynamic process of fragmentation of excited states of the molecular oxygen cation is investigated in a two-part study. First, using monochromatic 41.6 eV radiation and cold-target recoil-ion momentum spectroscopy detection of O+ + O+ ion pairs and associated electrons, we establish that this channel is populated only by an indirect process enabled by autoionization of excited oxygen atoms and identify the final active potential curves. Second, we probe the dynamics of this process using an attosecond pulse train of 35-42 eV EUV followed by an intense IR laser pulse. The results are compared with a model calculation.

引用

页数：5

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