A time-dependent Hartree–Fock approach for studying the electronic optical response of molecules in intense fields

X Li, SM Smith, AN Markevitch, DA Romanov… - Physical Chemistry …, 2005 - pubs.rsc.org
For molecules in high intensity oscillating electric fields, the time-dependent Hartree–Fock
(TDHF) method is used to simulate the behavior of the electronic density prior to ionization …

Manipulation of Bond Hardening in by Chirping of Intense Femtosecond Laser Pulses

LJ Frasinski, JH Posthumus, J Plumridge, K Codling… - Physical review …, 1999 - APS
Bond hardening of H 2+ has been observed in the intensity range of 100–200 TW/cm 2
using 792 nm laser pulses. This effect can be understood in terms of a light-induced …

Dissociation Dynamics of in Intense Laser Fields: Investigation of Photofragments from Single Vibrational Levels

K Sändig, H Figger, TW Hänsch - Physical Review Letters, 2000 - APS
We present a photodissociation experiment on H 2+ with ultrashort laser pulses (≥ 130 fs)
at peak intensities of≤ 1.5× 10 14 W/cm 2. Since in an ion beam setup H 2+ is produced in a …

Intense-Laser-Field Ionization of Molecular Hydrogen in the Tunneling Regime <?format ?>and Its Effect on the Vibrational Excitation of

X Urbain, B Fabre, EM Staicu-Casagrande… - Physical review …, 2004 - APS
H 2 molecules were ionized by Ti: sapphire (45 fs, 800 nm) and Nd-doped yttrium aluminum
garnet lasers (6 ns, 1064 nm). The relative populations of the vibrational levels of the H 2+ …

Fragmentation of in strong 800-nm laser pulses: Initial-vibrational-state dependence

B Feuerstein, U Thumm - Physical Review A, 2003 - APS
The fragmentation of the H 2+ molecular ion in 25-fs, 800-nm laser pulses in the intensity
range 0.05–0.5 PW/cm 2 is investigated by means of wave-packet propagation calculations …

Intense laser-field ionization of enhanced by two-electron dynamics

K Harumiya, H Kono, Y Fujimura, I Kawata… - Physical Review A, 2002 - APS
Intramolecular electronic dynamics and tunnel ionization of H 2 in an intense laser field (I≈
10 14 W/cm 2 and λ= 760 nm) are examined with accurate evaluation of three-dimensional …

Electronic optical response of molecules in intense fields: Comparison of TD-HF, TD-CIS, and TD-CIS (D) approaches

HB Schlegel, SM Smith, X Li - The Journal of chemical physics, 2007 - pubs.aip.org
Time-dependent Hartree-Fock (TD-HF) and time-dependent configuration interaction (TD-
CI) methods with Gaussian basis sets have been compared in modeling the response of …

Exact factorization adventures: A promising approach for non-bound states

E Villaseco Arribas, F Agostini, NT Maitra - Molecules, 2022 - mdpi.com
Modeling the dynamics of non-bound states in molecules requires an accurate description of
how electronic motion affects nuclear motion and vice-versa. The exact factorization (XF) …

Strong-field ionization dynamics of a model molecule

M Lein, T Kreibich, EKU Gross, V Engel - Physical Review A, 2002 - APS
We investigate the dynamics of a one-dimensional H 2 model molecule in strong laser fields
by numerical integration of the time-dependent Schrödinger equation without the use of the …

TD-CI simulation of the electronic optical response of molecules in intense fields: comparison of RPA, CIS, CIS (D), and EOM-CCSD

JA Sonk, M Caricato, HB Schlegel - The Journal of Physical …, 2011 - ACS Publications
A number of different levels of theory have been tested in TD-CI simulations of the response
of butadiene interacting with very short, intense laser pulses. Excitation energies and …