A modified Coulomb-Volkov theory is used to study the interaction of intense laser pulses with atomic Hydrogen. Photon energy greater than the ionization potential and non-perturbative conditions are considered. The dynamical Stark effect is accounted by introducing the initial state coupling to the remaining discrete and continuum atomic spectrum. Both the Stark shift and the decay of the initial state are studied. The ionization spectra, the Stark shift and the total ionization probability are compared with results obtained from numerical solution of the time dependent Schrödinger equation. Both results agree well. © 2009 IOP Publishing Ltd.
Documento: | Conferencia |
Título: | Dynamic Stark effect and the Coulomb-Volkov approximation |
Autor: | Bustamante, M.G.; Rodríguez, V.D.; Kamber E.Y.; Nikolic D.; Berrah N.; Orel A.; Tanis J.A.; Starace A.F.; Gorczyca T.W. |
Filiación: | Departamento de Física, FCEyN, Universidad de Buenos Aires, Buenos Aires, 1428, Argentina |
Palabras clave: | Atomic spectroscopy; Atoms; Ionization; Laser theory; Photoionization; Photons; Stark effect; Atomic hydrogen; Atomic spectra; Dinger equation; Intense laser pulse; Ionization probabilities; Ionization spectrum; Numerical solution; Time dependent; Ionization potential |
Año: | 2009 |
Volumen: | 194 |
Número: | 3 |
DOI: | http://dx.doi.org/10.1088/1742-6596/194/3/032030 |
Título revista: | 26th International Conference on Photonic, Electronic and Atomic Collisions |
Título revista abreviado: | J. Phys. Conf. Ser. |
ISSN: | 17426588 |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17426588_v194_n3_p_Bustamante |