Exploring tunneling time by instantaneous ionization rate in strong-field ionization

被引：21

作者：

Yuan, Minghu ^{[1
]}

Xin, PeiPei ^{[1
,2
]}

Chu, TianShu ^{[3
,4
,5
]}

Liu, HongPing ^{[1
]}

机构：

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

[2] Univ Chinese Acad Sci, Beijing 100080, Peoples R China

[3] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China

[4] Qingdao Univ, Inst Computat Sci & Engn, Lab New Fiber Mat & Modern Text, Growing Base State Key Lab, Qingdao 266071, Peoples R China

[5] Qingdao Univ, Coll Phys, Coll Chem Sci & Engn, Qingdao 266071, Peoples R China

来源：

OPTICS EXPRESS | 2017年 / 25卷 / 19期

基金：

中国国家自然科学基金;

关键词：

DELAY; TRANSMISSION; RESOLUTION; ELECTRON;

D O I：

10.1364/OE.25.023493

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A quantum approach is presented to investigate tunneling time by supervising the instantaneous ionization rate. We find that the ionization rate peak appearance lags behind the maximum of electric field intensity for a linearly polarized pulse. This time delay interval can be taken to characterize the tunneling time. In addition, if an atom with anisotropic electronic distribution is exposed to a circular polarized pulse, the tunneling time can also be measured and defined as the time difference between the instant of the largest ionization rate and the moment when the electric field points in the maximum of the bound electron density. (C) 2017 Optical Society of America

引用

页码：23493 / 23501

页数：9

共 42 条

[1] Interrogation of orbital structure by elliptically polarized intense femtosecond laser pulses [J].