Optical Detection of Tunneling Ionization

被引：38

作者：

Verhoef, Aart J. ^{[1
]}

Mitrofanov, Alexander V. ^{[1
]}

Serebryannikov, Evgenii E. ^{[2
]}

Kartashov, Daniil V. ^{[1
]}

Zheltikov, Aleksei M. ^{[2
]}

Baltuska, Andrius ^{[1
]}

机构：

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

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

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 16期

基金：

奥地利科学基金会; 俄罗斯基础研究基金会;

关键词：

HARMONIC-GENERATION; NONLINEAR OPTICS; CYCLE; FIELDS; LIGHT;

D O I：

10.1103/PhysRevLett.104.163904

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have experimentally detected optical harmonics that are generated due to a tunneling-ionization-induced modulation of the electron density. The optical signature of electron tunneling can be isolated from concomitant optical responses by using a noncollinear pump-probe setup. Whereas previously demonstrated tools for attosecond metrology of gases, plasmas, and surfaces rely on direct detection of charged particles, detection of the background-free time-resolved optical signal, which uniquely originates from electron tunneling, offers an interesting alternative that is especially suited for systems in which free electrons cannot be directly measured.

引用

页数：4

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