Validity of Factorization of the High-Energy Photoelectron Yield in Above-Threshold Ionization of an Atom by a Short Laser Pulse

被引：28

作者：

Frolov, M. V. ^{[1
,2
]}

Knyazeva, D. V. ^{[1
]}

Manakov, N. L. ^{[1
]}

Popov, A. M. ^{[3
]}

Tikhonova, O. V. ^{[3
]}

Volkova, E. A. ^{[3
]}

Xu, Ming-Hui ^{[4
,5
]}

Peng, Liang-You ^{[2
,4
,5
]}

Pi, Liang-Wen ^{[2
,6
]}

Starace, Anthony F. ^{[2
,6
]}

机构：

[1] Voronezh State Univ, Dept Phys, Voronezh 394006, Russia

[2] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China

[3] Moscow MV Lomonosov State Univ, DV Skobeltsyn Inst Nucl Phys, Moscow 199991, Russia

[4] Peking Univ, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China

[5] Peking Univ, Dept Phys, Beijing 100871, Peoples R China

[6] Univ Nebraska, Dept Phys & Astron, Lincoln, NE 68588 USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 21期

基金：

美国国家科学基金会;

关键词：

FIELD;

D O I：

10.1103/PhysRevLett.108.213002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An analytic description for the yield, P(p), of high-energy electrons ionized from an atom by a short (few-cycle) laser pulse is obtained quantum mechanically. Factorization of P(p) in terms of an electron wave packet and the cross section for elastic electron scattering (EES) is shown to occur only for an ultrashort pulse, while in general P(p) involves interference of EES amplitudes with laser-field-dependent momenta. The analytic predictions agree well with accurate numerical results.

引用

页数：5

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