Angular distributions for double ionization of Li- by an ultrashort, intense laser pulse. |
| |
Authors: | G Lagmago Kamta A F Starace |
| |
Institution: | Department of Physics and Astronomy, The University of Nebraska, 116 Brace Laboratory, Lincoln, Nebraska 68588-0111, USA. |
| |
Abstract: | We predict photoelectron angular distributions for double ionization of Li- by both weak and intense ultrashort, linearly polarized laser pulses by direct numerical integration of the three-dimensional, time-dependent Schr?dinger equation. Li- is treated as a two-active electron system. Near threshold, for low intensity we recover general features of angular distributions for one-photon double ionization. For the intense field (multiphoton) case, the photoelectron angular distribution changes significantly, particularly in directions parallel and perpendicular to the laser polarization axis. |
| |
Keywords: | |
|
|