Characteristic Spectrum of Very Low-Energy Photoelectron from Above-Threshold Ionization in the Tunneling Regime

被引：120

作者：

Wu, C. Y. ^{[1
]}

Yang, Y. D. ^{[1
]}

Liu, Y. Q. ^{[1
]}

Gong, Q. H. ^{[1
]}

Wu, M. ^{[2
]}

Liu, X. ^{[2
]}

Hao, X. L. ^{[3
,4
]}

Li, W. D. ^{[3
,4
]}

He, X. T. ^{[5
,6
]}

Chen, J. ^{[5
,6
]}

机构：

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

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

[3] Shanxi Univ, Inst Theoret Phys, Taiyuan 030006, Peoples R China

[4] Shanxi Univ, Dept Phys, Taiyuan 030006, Peoples R China

[5] Peking Univ, Ctr Appl Phys & Technol, HEDPS, Beijing 100084, Peoples R China

[6] Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 04期

关键词：

FIELD IONIZATION; ATOMS; HARMONICS; ELECTRONS; PLATEAU;

D O I：

10.1103/PhysRevLett.109.043001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report an experimental and theoretical study of very low-energy photoelectrons in tunneling ionization process from noble gas atoms interacting with ultrashort intense infrared laser pulses. A universal peak structure with electron energy well below 1 eV in the photoelectron spectrum, corresponding to the double-hump structure in the longitudinal momentum distribution, is identified experimentally for all atomic species. Our quantum and semiclassical analysis reveal the role of long-range Coulomb potential in the production of this very low-energy peak structure.

引用

页数：5

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