Double-ionization dynamics of laser-driven helium

被引：81

作者：

Dundas, D ^{[1
]}

Taylor, KT ^{[1
]}

Parker, JS ^{[1
]}

Smyth, ES ^{[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 | 1999年 / 32卷 / 09期

关键词：

D O I：

10.1088/0953-4075/32/9/107

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report a new method which allows sequential and non-sequential double-ionization rates in laser-driven helium to be distinguished and calculated separately. The method is applied to calculate such rates for two laser pulses, one of 0.236 au frequency and 8.0 x 10(15) W cm(-2) peak intensity, the other of 1.0 au frequency and also of 8.0 x 10(15) W cm(-2) peak intensity.

引用

页码：L231 / L238

页数：8

共 25 条

[1] Two-dimensional, two-electron model atom in a laser pulse: Exact treatment, single-active-electron analysis, time-dependent density-functional theory, classical calculations, and nonsequential ionization [J].

Bauer, D .

PHYSICAL REVIEW A, 1997, 56 (04) :3028-3039

[2] Mechanism of laser-induced double ionization of helium [J].

Becker, A ;

Faisal, FHM .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1996, 29 (06) :L197-L202

[3] Multiphoton ionization saturation intensities and generalized cross sections from ATI spectra [J].

Charalambidis, D ;

Xenakis, D ;

Uiterwaal, CJGJ ;

Maragakis, P ;

Zhang, J ;

Schroder, H ;

Faucher, O ;

Lambropoulos, P .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1997, 30 (06) :1467-1479

[4]

COMBES JM, 1975, PHYS REV D, V11, P366, DOI 10.1103/PhysRevD.11.366

[5] CORRELATIONS OF 2 EXCITED ELECTRONS [J].

FANO, U .

REPORTS ON PROGRESS IN PHYSICS, 1983, 46 (02) :97-165

[6] 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

[7] PHOTOELECTRON-SPECTRA FOR A 2-ELECTRON SYSTEM IN A STRONG LASER FIELD [J].

GROBE, R ;

EBERLY, JH .

PHYSICAL REVIEW LETTERS, 1992, 68 (19) :2905-2908

[8] WAVELENGTH DEPENDENCE OF NONSEQUENTIAL DOUBLE-IONIZATION IN HE [J].

KONDO, K ;

SAGISAKA, A ;

TAMIDA, T ;

NABEKAWA, Y ;

WATANABE, S .

PHYSICAL REVIEW A, 1993, 48 (04) :R2531-R2533

[9] ATI as a source for multiply charged ion production in a laser field [J].

Kuchiev, MY .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1995, 28 (23) :5093-5115

[10] TIME-DEPENDENT HARTREE-FOCK THEORY OF MULTIPHOTON IONIZATION - HELIUM [J].

KULANDER, KC .

PHYSICAL REVIEW A, 1987, 36 (06) :2726-2738

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