Tunneling-induced shift of the cutoff law for high-order above-threshold ionization

被引：9

作者：

Lai, X. Y. ^{[1
]}

Quan, W. ^{[1
]}

Liu, X. ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab Magnet Resonances & Atom & Mol Phys, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China

来源：

PHYSICAL REVIEW A | 2011年 / 84卷 / 02期

关键词：

FIELD;

D O I：

10.1103/PhysRevA.84.025401

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate the cutoff law for high-order above-threshold ionization (HATI) within a semiclassical framework. By explicitly adopting the tunneling effect and considering the initial position shift of the tunneled electron from the origin in the model, the cutoff energy position in HATI spectrum exhibits a well-defined upshift from the simple-man model prediction. The comparison between numerical results from our improved semiclassical model and the quantum-orbit theory shows a good agreement for small values of the Keldysh parameter gamma, implying the important role of the inherent quantum tunneling effect in HATI dynamics.

引用

页数：4

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