Asymmetric electron angular distributions in resonant dissociative photoionization of H2 with ultrashort xuv pulses
ABSTRACT: Photoelectron angular distributions from fixed-in-space H2 molecules exposed to ultrashort xuv laser pulses have been evaluated. The theoretical method is based on the solution of the time-dependent Schrödinger equation in a basis of stationary states that include all electronic and vibrat...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión enviada para evaluación y publicación |
| Fecha de publicación: | 2009 |
| País: | Colombia |
| Institución: | Universidad de Antioquia |
| Repositorio: | Repositorio UdeA |
| Idioma: | inglés |
| OAI Identifier: | oai:bibliotecadigital.udea.edu.co:10495/8380 |
| Acceso en línea: | http://hdl.handle.net/10495/8380 |
| Access Level: | acceso abierto |
| Palabra clave: | Distribuciones angulares asimétricas Electrones Fotoionización Pulsos láser |
| Sumario: | ABSTRACT: Photoelectron angular distributions from fixed-in-space H2 molecules exposed to ultrashort xuv laser pulses have been evaluated. The theoretical method is based on the solution of the time-dependent Schrödinger equation in a basis of stationary states that include all electronic and vibrational degrees of freedom. Asymmetric angular distributions are observed as a consequence of the delayed ionization from the H2 doubly excited states, which induces interferences between gerade and ungerade ionization channels. The analysis of this asymmetry as a function of pulse duration can provide an estimate of the corresponding autoionization widths. |
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