The advancement of high-power and short-pulse laser technology in the past two decades
has generated considerable interest in the study of multiphoton and very high-order …

This paper reviews the knowledge of the structure, dynamics and collisions of atomic
negative ions, as accumulated at the end of 2003, and describes how the research exploring …

A simple analytical solution for the problem of multiphoton detachment from negative ions by
a linearly polarized laser field is found. It is valid in the wide range of intensities and …

Multiphoton excitation and ionization of two-electron atoms under strong laser pulses, with
emphasis on double excitation, is reviewed. After an introduction to the basic concepts of …

We describe a two-electron ''atom''in one space dimension. This one-dimensional system is
treated fully quantum mechanically and with full electron correlation. Its bare eigenstates …

The negative ion of hydrogen continues to be important in atomic physics and astrophysics.
Correlations between the two electrons are strong already in the ground state, the only …

We extend our previous perturbative study of the multiphoton detachment of H−[Phys. Rev. A
48, 4654 (1993)] to stronger fields by considering the intensity-dependent photodetachment …

The quasistationary quasienergy state approach (QQES) is applied to the analysis of partial
(n-photon) decay rates and angular distributions (ADs) of photoelectrons produced by an …

We perform a nonperturbative study of the multiphoton above-threshold detachment of H− in
the presence of 1.640− μ m and 1.908− μ m laser fields by means of the non-Hermitian …

The recently proposed R-matrix-Floquet theory of multiphoton processes has been used to
calculate multiphoton ionization rates for the two-electron systems H− and He in intense …