Single-active-electron approximation for describing molecules in ultrashort laser pulses and its application to molecular hydrogen

被引：95

作者：

Awasthi, Manohar ^{[1
]}

Vanne, Yulian V. ^{[1
]}

Saenz, Alejandro ^{[1
]}

Castro, Alberto ^{[2
]}

Decleva, Piero ^{[3
]}

机构：

[1] Humboldt Univ, AG Moderne Opt, Inst Phys, D-10117 Berlin, Germany

[2] Free Univ Berlin, Inst Theoret Phys, D-14195 Berlin, Germany

[3] Univ Trieste, Dipartimento Sci Chim, I-34127 Trieste, Italy

来源：

PHYSICAL REVIEW A | 2008年 / 77卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.77.063403

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A numerical approach that allows for the solution of the time-dependent Schrodinger equation (TDSE) describing molecules exposed to intense short laser pulses was developed. The molecular response to the strong field is described within the single-active electron approximation (SAE). The method is applied in the fixed-nuclei approximation to molecular hydrogen with parallel orientation of the internuclear axis to the laser field. The validity of the SAE is investigated by comparing the ionization and electronic excitation yields to full two-electron solutions of the TDSE. The present results are also used to investigate the validity of approximate SAE methods like the molecular Ammosov-Delone-Krainov and the strong-field approximation.

引用

页数：17

共 56 条

[1]

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

[2] Non-perturbative solution of the time-dependent Schrodinger equation describing H2 in intense short laser pulses [J].

Awasthi, M ;

Vanne, YV ;

Saenz, A .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2005, 38 (22) :3973-3985

[3] Internuclear-distance dependence of ionization of H2 in strong laser fields [J].

Awasthi, Manohar ;

Saenz, Alejandro .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2006, 39 (13) :S389-S395

[4] Self-consistent molecular Hartree-Fock-Slater calculations - I. The computational procedure [J].

Baerends, E. J. ;

Ellis, D. E. ;

Ros, P. .

CHEMICAL PHYSICS, 1973, 2 (01) :41-51

[5] 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

[6]

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

[7] Internal laser-induced dipole force at work in C60 molecule -: art. no. 203004 [J].

Bhardwaj, VR ;

Corkum, PB ;

Rayner, DM .

PHYSICAL REVIEW LETTERS, 2003, 91 (20)

[8] Theory of tunnel ionization in complex systems -: art. no. 073001 [J].

Brabec, T ;

Côté, M ;

Boulanger, P ;

Ramunno, L .

PHYSICAL REVIEW LETTERS, 2005, 95 (07)

[9] VARIATIONAL APPROACH TO CONTINUUM ORBITALS IN A SPLINE BASIS - AN APPLICATION TO H-2+ PHOTOIONIZATION [J].

BROSOLO, M ;

DECLEVA, P .

CHEMICAL PHYSICS, 1992, 159 (02) :185-196

[10] Signatures of symmetry-induced quantum-interference effects observed in above-threshold-ionization spectra of molecules -: art. no. 041402 [J].

Grasbon, F ;

Paulus, GG ;

Chin, SL ;

Walther, H ;

Muth-Böhm, J ;

Becker, A ;

Faisal, FHM .

PHYSICAL REVIEW A, 2001, 63 (04) :1-4

← 1 2 3 4 5 6 →