Time delay between singly and doubly ionizing wavepackets in laser-driven helium

被引：57

作者：

Parker, JS ^{[1
]}

Doherty, BJS ^{[1
]}

Meharg, KJ ^{[1
]}

Taylor, KT ^{[1
]}

机构：

[1] Queens Univ Belfast, Dept Appl Math & Theoret Phys, Belfast BT7 1NN, Antrim, North Ireland

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2003年 / 36卷 / 21期

关键词：

D O I：

10.1088/0953-4075/36/21/L04

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present calculations of the time delay between single and double ionization of helium, obtained from full-dimensionality numerical integrations of the helium-laser Schrodinger equation. The notion of a quantum mechanical time delay is defined in terms of the interval between correlated bursts of single and double ionization. Calculations are performed at 390 and 780 nm in laser intensities that range from 2 x 10(14) to 14 x 10(14) W cm(-2). We find results consistent with the rescattering model of double ionization but supporting its classical interpretation only at 780 nm.

引用

页码：L393 / L400

页数：8

共 20 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] PLASMA PERSPECTIVE ON STRONG-FIELD MULTIPHOTON IONIZATION [J].

CORKUM, PB .

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

[3]

Dörner R, 2002, PHOTONIC, ELECTRONIC AND ATOMIC COLLISIONS, P27

[4] Efficient grid treatment of the ionization dynamics of laser-driven H2+ -: art. no. 023408 [J].

Dundas, D .

PHYSICAL REVIEW A, 2002, 65 (02) :11

[5]

KUCHIEV MY, 1987, JETP LETT+, V45, P404

[6] Intense-field double ionization of helium: Identifying the mechanism [J].

Lein, M ;

Gross, EKU ;

Engel, V .

PHYSICAL REVIEW LETTERS, 2000, 85 (22) :4707-4710

[7] Momentum distributions of Nen+ ions created by an intense ultrashort laser pulse [J].

Moshammer, R ;

Feuerstein, B ;

Schmitt, W ;

Dorn, A ;

Schröter, CD ;

Ullrich, J ;

Rottke, H ;

Trump, C ;

Wittmann, M ;

Korn, G ;

Hoffmann, K ;

Sandner, W .

PHYSICAL REVIEW LETTERS, 2000, 84 (03) :447-450

[8] Time-dependent and time-independent methods applied to multiphoton ionization of helium [J].

Parker, JS ;

Glass, DH ;

Moore, LR ;

Smyth, ES ;

Taylor, KT ;

Burke, PG .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2000, 33 (07) :L239-L247

[9] Double ionization of helium at 390 um [J].

Parker, JS ;

Moore, LR ;

Dundas, D ;

Taylor, KT .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2000, 33 (20) :L691-L698

[10] Intense-field multiphoton ionization of helium [J].

Parker, JS ;

Smyth, ES ;

Taylor, KT .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1998, 31 (14) :L571-L578

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