INVESTIGADORES
RODRIGUEZ CHARIARSE Vladimir Daniel
artículos
Título:
Secondary peaks in the atomic ionization by a resonant laser pulse
Autor/es:
M. G. BUSTAMANTE; V. D. RODRÍGUEZ; R. O. BARRACHINA
Revista:
JOURNAL OF PHYSICS: CONFERENCE SERIES
Editorial:
Institute of Physics
Referencias:
Año: 2012 vol. 397 p. 12014 - 12019
ISSN:
1742-6588
Resumen:
The above-threshold ionization of atoms by XUV short laser pulses with frequencies resonant with a ground-excited state transition is investigated. A theory based on a variational expression with trial wave functions for the final and the initial states is presented. For the former we use a Coulomb-Volkov wave function, and for the latter a close-coupling solution of the time-dependent Schrödinger equation considering a few bound states and their depletion towards the continuum. We find that this discrete-continuum Coulomb-Volkov theory provides a very good description of the photoelectron spectrum. In particular it accounts for the splitting of the above-threshold ionization peaks by Rabi oscillations and the appearance of secondary-peaks observed in full numerical simulations.
