This article is cited in 2 papers

Atomic and molecular physics

Electron detachment from negative hydrogen and lithium ions by an ultrashort laser pulse

P. A. Golovinski^ab, A. A. Drobyshev<sup>a

a</sup> Laboratory of Physical Research, Voronezh State University of Architecture and Civil Engineering, Voronezh, 394006, Russia
^b Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Moscow Region

Abstract: A model of electron detachment from negative ions is based on the approximation of instantaneous perturbation. A simple analytical representation for the ground state of the weakly bound electron is chosen to reproduce the radial distribution of electron density at any distance from the center of the ion. The probabilities of electron detachment from negative hydrogen and lithium ions are derived as functions of the transferred momentum of the laser field. The contribution of the inner shells of ions to the electron detachment is estimated. The momentum distribution of electrons in the final state is obtained. The effect of a pulse train on the total probability of detachment is considered for different pulse polarities. The conditions for the partial electron return to the initial state are revealed.

Received: 10.02.2012

 English version: Technical Physics, 2013, 58:2, 158–164

Bibliographic databases:

•