Suppressed molecular ionization for a class of diatomics in intense femtosecond laser fields

被引：427

作者：

Muth-Böhm, J ^{[1
]}

Becker, A ^{[1
]}

Faisal, FHM ^{[1
]}

机构：

[1] Univ Bielefeld, Fak Phys, D-33501 Bielefeld, Germany

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.85.2280

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is shown that the puzzling experimental observation of suppressed molecular ionization, in intense laser fields, of O-2, and its absence in N-2, is a symmetry induced dynamical effect. More generally, it is predicted that the ionization signal of the class of homonuclear diatomic molecules having valence orbitals with an antibonding symmetry (e.g., sigma(u), pi(g)) would be suppressed, but not those with a bonding symmetry (e.g., sigma(g), pi(u)). The suppression effect can be visualized as due to an effective destructive interference between the two subwaves of the ionizing electron emerging from the two atomic centers.

引用

页码：2280 / 2283

页数：4

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