Signatures of attosecond electron tunneling dynamics in the evolution of intense few-cycle light pulses

被引：12

作者：

Serebryannikov, E. E. ^{[1
]}

Verhoef, A. J. ^{[2
]}

Mitrofanov, A. ^{[2
]}

Baltuska, A. ^{[2
]}

Zheltikov, A. M. ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Phys, Ctr Int Laser, Moscow 119992, Russia

[2] Vienna Univ Technol, Photon Inst, A-1040 Vienna, Austria

来源：

PHYSICAL REVIEW A | 2009年 / 80卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

atom-photon collisions; electron density; neon; nonlinear optical susceptibility; photoionisation; tunnelling; LASER-PULSES; GENERATION; IONIZATION; FIELD; FILAMENTATION; PROPAGATION;

D O I：

10.1103/PhysRevA.80.053809

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The sensitivity of electron tunneling to the phase of an ionizing light field is shown to manifest itself in detectable features in the spectral and temporal evolution of intense few-cycle light pulses in an ionizing medium. An ultrafast buildup of electron density in the regime of tunneling ionization gives rise to a modulation of a few-cycle field wave form and enhances the short-wavelength part of its spectrum. In a low-pressure gas, the signatures of electron tunneling in the evolution of few-cycle pulses can be isolated from the effects related to atomic nonlinear susceptibilities, giving an access to attosecond electron tunneling dynamics.

引用

页数：9