Strong-field ionization of atoms and molecules: The two-term saddle-point method

被引：28

作者：

Kjeldsen, Thomas Kim ^{[1
]}

Madsen, Lars Bojer ^{[1
]}

机构：

[1] Univ Aarhus, Dept Phys & Astron, DK-8000 Aarhus C, Denmark

来源：

PHYSICAL REVIEW A | 2006年 / 74卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.74.023407

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We derive an analytical formula for the ionization rate of neutral atoms and molecules in a strong monochromatic field. Our model is based on the strong-field approximation with transition amplitudes calculated by an extended saddle-point method. We show that the present two-term saddle-point method reproduces even complicated structures in angular resolved photoelectron spectra.

引用

页数：8

共 28 条

[1]

Ammosov M. V., 1986, Soviet Physics - JETP, V64, P1191

[2] Intense-field many-body S-matrix theory [J].

Becker, A ;

Faisal, FHM .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2005, 38 (03) :R1-R56

[3] 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

[4] S-matrix analysis of coincident measurement of two-electron energy distribution for double ionization of He in an intense laser field [J].

Becker, A. ;

Faisal, F.H.M. .

Physical Review Letters, 2002, 89 (19) :1-193003

[5]

Becker A, 2001, PHYS REV A, V64, DOI 10.1103/PhysRevA.64.023408

[6]

Brink D.M., 1968, Angular Momentum, V2nd

[7] Coulomb-Volkov approach of ionization by extreme-ultraviolet laser pulses in the subfemtosecond regime [J].

Duchateau, G ;

Cormier, E ;

Gayet, R .

PHYSICAL REVIEW A, 2002, 66 (02) :7

[8] MULTIPLE ABSORPTION OF LASER PHOTONS BY ATOMS [J].

FAISAL, FHM .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1973, 6 (04) :L89-L92

[9] High-order above-threshold ionization: The uniform approximation and the effect of the binding potential [J].

Faria, CFD ;

Schomerus, H ;

Becker, W .

PHYSICAL REVIEW A, 2002, 66 (04) :14

[10] High-energy above-threshold detachment from negative ions [J].

Gazibegovic-Busuladzic, A ;

Milosevic, DB ;

Becker, W .

PHYSICAL REVIEW A, 2004, 70 (05) :053403-1

← 1 2 3 →