Analysis of strong-field enhanced ionization of molecules using Bohmian trajectories

被引：27

作者：

Sawada, Ryohto ^{[1
,2
]}

Sato, Takeshi ^{[2
]}

Ishikawa, Kenichi L. ^{[1
,2
,3
]}

机构：

[1] Univ Tokyo, Grad Sch Engn, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

[2] Univ Tokyo, Grad Sch Engn, Photon Sci Ctr, Bunkyo Ku, Tokyo 1138656, Japan

[3] Univ Tokyo, Grad Sch Engn, Dept Nucl Engn & Management, Bunkyo Ku, Tokyo 1138656, Japan

来源：

PHYSICAL REVIEW A | 2014年 / 90卷 / 02期

基金：

日本科学技术振兴机构;

关键词：

SUGGESTED INTERPRETATION; QUANTUM-THEORY; INTENSE; TERMS; IONS;

D O I：

10.1103/PhysRevA.90.023404

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We theoretically investigate the mechanism of enhanced ionization in two-electron molecules by analyzing Bohmian trajectories for a one-dimensional H-2 in an intense laser field. We identify both types of ionizing trajectories corresponding to the ejection from the up-field and down-field cores. The trajectories of the two electrons are correlated with each other in the former, while correlation is negligible in the latter. The contributions from the two ionization types, though dependent on laser intensity and internuclear distance, are comparable to each other.

引用

页数：8

共 35 条

[1] Laser-induced electron recollision in H2 and electron correlation -: art. no. 023408
Bandrauk, AD
Lu, HZ
[J]. PHYSICAL REVIEW A, 2005, 72 (02):
[2] Need for relativistic corrections in the analysis of spatial adiabatic passage of matter waves
Benseny, A.
Baguda, J.
Oriols, X.
Mompart, J.
[J]. PHYSICAL REVIEW A, 2012, 85 (05):
[3] BOHM D, 1952, PHYS REV, V85, P166, DOI 10.1103/PhysRev.85.166
[4] A SUGGESTED INTERPRETATION OF THE QUANTUM THEORY IN TERMS OF HIDDEN VARIABLES .2.
BOHM, D
[J]. PHYSICAL REVIEW, 1952, 85 (02): : 180 - 193
[5] Two-step Coulomb explosions of diatoms in intense laser fields
Chelkowski, S
Bandrauk, AD
[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1995, 28 (23) : L723 - L731
[6] Observation of enhanced ionization of molecular ions in intense laser fields
Constant, E
Stapelfeldt, H
Corkum, PB
[J]. PHYSICAL REVIEW LETTERS, 1996, 76 (22) : 4140 - 4143
[7] Durr D., 2009, FUNDAMENTAL THEORIES
[8] Attosecond imaging of molecular electronic wavepackets
Haessler, S.
Caillat, J.
Boutu, W.
Giovanetti-Teixeira, C.
Ruchon, T.
Auguste, T.
Diveki, Z.
Breger, P.
Maquet, A.
Carre, B.
Taieb, R.
Salieres, P.
[J]. NATURE PHYSICS, 2010, 6 (03) : 200 - 206
[9] Harumiya K, 2002, PHYS REV A, V66, DOI 10.1103/PhysRevA.66.043403
[10] Holland PR., 1995, The Quantum Theory of Motion

← 1 2 3 4 →