Electron correlations in nonsequential double ionization of helium at intensity below the recollision threshold

被引：8

作者：

Yu, Benhai ^{[1
]}

Zhang, Dongling ^{[1
]}

Li, Yingbin ^{[1
]}

Tang, Qingbin ^{[1
]}

机构：

[1] Xinyang Normal Univ, Coll Phys & Elect Engn, Xinyang 464000, Peoples R China

来源：

JOURNAL OF MODERN OPTICS | 2012年 / 59卷 / 08期

基金：

中国国家自然科学基金;

关键词：

nonsequential double ionization; recollision threshold; electron correlation; FIELD DOUBLE-IONIZATION; STRONG LASER FIELDS; MOMENTUM DISTRIBUTIONS; DYNAMICS; IONS; ALIGNMENT; PULSES;

D O I：

10.1080/09500340.2012.659766

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

With a classical three-dimensional ensemble model, we investigate the correlation behavior of the electrons from nonsequential double ionization of helium at intensities below the recollision threshold. At these laser intensities well below the recollision threshold, the two-electron momentum spectra pairs along the laser polarization show anticorrelated behaviors. This anticorrelated behavior becomes stronger when the laser intensity decreases, and then becomes weaker as the laser intensity further decreases. The responsible microscopic dynamics for the anticorrelated behavior and its intensity dependence is explored by back analyzing the double ionization trajectories.

引用

页码：679 / 685

页数：7

共 50 条

[1] Interpretation of momentum distribution of recoil ions from laser induced nonsequential double ionization [J].

Becker, A ;

Faisal, FHM .

PHYSICAL REVIEW LETTERS, 2000, 84 (16) :3546-3549

[2] Coulomb focusing in intense field atomic processes [J].

Brabec, T ;

Ivanov, MY ;

Corkum, PB .

PHYSICAL REVIEW A, 1996, 54 (04) :R2551-R2554

[3]

Cao W., 2008, PHYS REV A, V75

[4] Control of quantum paths in high-order harmonic generation via a ω+3ω bichromatic laser field [J].

Cao, Wei ;

Lu, Peixiang ;

Lan, Pengfei ;

Hong, Weiyi ;

Wang, Xinlin .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2007, 40 (05) :869-875

[5] PLASMA PERSPECTIVE ON STRONG-FIELD MULTIPHOTON IONIZATION [J].

CORKUM, PB .

PHYSICAL REVIEW LETTERS, 1993, 71 (13) :1994-1997

[6] Laser-induced non-sequential double ionization investigated at and below the threshold for electron impact ionization [J].

Eremina, E ;

Liu, X ;

Rottke, H ;

Sandner, W ;

Dreischuh, A ;

Lindner, F ;

Grasbon, F ;

Paulus, GG ;

Walther, H ;

Moshammer, R ;

Feuerstein, B ;

Ullrich, J .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2003, 36 (15) :3269-3280

[7] Electron-electron correlation in strong laser fields [J].

Faria, C. Figueira de Morisson ;

Liu, X. .

JOURNAL OF MODERN OPTICS, 2011, 58 (13) :1076-1131

[8] Classical and quantum-mechanical treatments of nonsequential double ionization with few-cycle laser pulses [J].

Faria, CFD ;

Liu, X ;

Sanpera, A ;

Lewenstein, A .

PHYSICAL REVIEW A, 2004, 70 (04) :043406-1

[9] Separation of recollision mechanisms in nonsequential strong field double ionization of Ar:: The role of excitation tunneling -: art. no. 043003 [J].

Feuerstein, B ;

Moshammer, R ;

Fischer, D ;

Dorn, A ;

Schröter, CD ;

Deipenwisch, J ;

Lopez-Urrutia, JRC ;

Höhr, C ;

Neumayer, P ;

Ullrich, J ;

Rottke, H ;

Trump, C ;

Wittmann, M ;

Korn, G ;

Sandner, W .

PHYSICAL REVIEW LETTERS, 2001, 87 (04) :43003-1

[10] OBSERVATION OF NONSEQUENTIAL DOUBLE IONIZATION OF HELIUM WITH OPTICAL TUNNELING [J].

FITTINGHOFF, DN ;

BOLTON, PR ;

CHANG, B ;

KULANDER, KC .

PHYSICAL REVIEW LETTERS, 1992, 69 (18) :2642-2645

← 1 2 3 4 5 →