Tunneling and other modes of atomic ionization in the presence of strong few-cycle laser pulses and generation of attosecond pulses

被引：1
|
作者：
Popov, A. M. [1 ]
Tikhonova, O. V. [1 ]
Volkova, E. A. [1 ]
机构：
[1] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow 119992, Russia
来源：
LASER PHYSICS | 2006年 / 16卷 / 04期
基金：
加拿大自然科学与工程研究理事会; 俄罗斯基础研究基金会;
关键词：
D O I：
10.1134/S1054660X06040128
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Numerical integration of the nonstationary Schrodinger equation describing the dynamics of a quantum system in the presence of the electromagnetic wave field is employed to study atomic hydrogen ionization in the presence of an ultrashort laser pulse. It is demonstrated that, in the nonadiabatic mode, in the presence of a pulse with a duration of one or two optical cycles, the ionization probability is anomalously high in comparison with predictions based on the Keldysh ionization theory and various modifications of this theory. It is shown that the nonadiabatic and multiphoton modes of the atomic ionization in the presence of ultrashort laser pulses are superior to the low-frequency adiabatic mode in the effective generation of attosecond XUV pulses.
引用
收藏
页码：607 / 617
页数：11
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