Quantitative identification of different strong-field ionization channels in the transition regime

被引：4
|
作者：
Hao, Xiaolei [1 ,2 ]
Shu, Zheng [3 ,4 ,5 ]
Li, Weidong [1 ,2 ]
Hu, Shilin [3 ,4 ,5 ]
Chen, Jing [3 ,4 ,5 ]
机构：
[1] Shanxi Univ, Inst Theoret Phys, Taiyuan 030006, Peoples R China
[2] Shanxi Univ, Dept Phys, Taiyuan 030006, Peoples R China
[3] Peking Univ, HEDPS, CAPT, Beijing 100084, Peoples R China
[4] Peking Univ, MoE Coll Engn, IFSA Collaborat Innovat Ctr, Beijing 100084, Peoples R China
[5] Inst Appl Phys & Computat Math, POB 8009, Beijing 100088, Peoples R China
来源：
OPTICS EXPRESS | 2016年 / 24卷 / 22期
关键词：
TIME;
D O I：
10.1364/OE.24.025250
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We make a quantitative investigation on the tunneling and multi-photon channels in the transition regime from Keldysh parameter. gamma < 1 to gamma > 1 by numerically solving the time-dependent Schrodinger equation (TDSE). A method is proposed to separate the contributions of those ionization channels based on the characteristics of the current. By analysing the dependence of the ionization rate on the Keldysh parameter., we identify a field independent transition point at gamma approximate to 2, which is different from the well-accepted consensus of gamma approximate to 1, from adiabatic to nonadiabatic regime. (C) 2016 Optical Society of America
引用
收藏
页码：25250 / 25257
页数：8
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