TY - JOUR
KW - non-Palaiseau
KW - paper
AU - Valérie Véniard
AU - Richard Taïeb
AU - Alfred Maquet
AB - Time-dependent density functional theory appears to be a valuable tool to study multiphoton ionization of atoms or molecules. However, some difficulties appear for high laser intensities, when multiple ionization becomes possible. Photoionization of atoms subjected to an intense laser pulse is studied within this framework. In order to gain some insight into the dynamics of the process, the kinetic-energy spectra of the emitted electrons are analyzed. Particular attention is paid to the problem of extracting the photoelectron spectra from density functional theory calculations. A method to compute the spectra from the electron density is proposed.
BT - LASER PHYSICS
DA - APR
M1 - 4
N1 - 11th International Laser Physics Workshop (LPHYS 02), BRATISLAVA, SLOVAKIA, JUL 01-05, 2002
N2 - Time-dependent density functional theory appears to be a valuable tool to study multiphoton ionization of atoms or molecules. However, some difficulties appear for high laser intensities, when multiple ionization becomes possible. Photoionization of atoms subjected to an intense laser pulse is studied within this framework. In order to gain some insight into the dynamics of the process, the kinetic-energy spectra of the emitted electrons are analyzed. Particular attention is paid to the problem of extracting the photoelectron spectra from density functional theory calculations. A method to compute the spectra from the electron density is proposed.
PY - 2003
SP - 465
EP - 474
T2 - LASER PHYSICS
TI - Photoionization of atoms using time-dependent density functional theory
VL - 13
SN - 1054-660X
ER -