H2+ ionization by ultra-short electromagnetic pulses investigated through a non-perturbative Coulomb-Volkov approach
The sudden Coulomb-Volkov theoretical approximation has been shown to well describe atomic ionization by intense and ultra-short electromagnetic pulses, such as pulses generated by very fast highly-charged ions. This approach is extended here to investigate single ionization of homonuclear diatomic...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_09534075_v38_n15_p2775_Rodriguez |
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todo:paper_09534075_v38_n15_p2775_Rodriguez2023-10-03T15:50:59Z H2+ ionization by ultra-short electromagnetic pulses investigated through a non-perturbative Coulomb-Volkov approach Rodríguez, V.D. Macri, P. Gayet, R. Approximation theory Charged particles Electromagnetic pulse Electromagnetic wave polarization Heavy ions Hydrogen Perturbation techniques Angular distributions Atomic ionization Non-perturbative Coulomb-Volkov approach Ultra-short electromagnetic pulses Ionization The sudden Coulomb-Volkov theoretical approximation has been shown to well describe atomic ionization by intense and ultra-short electromagnetic pulses, such as pulses generated by very fast highly-charged ions. This approach is extended here to investigate single ionization of homonuclear diatomic molecules by such pulses in the framework of one-active electron. Under particular conditions, a Young-like interference formula can approximately be factored out. Present calculations show interference effects originating from the molecular two-centre structure. Fivefold differential angular distributions of the ejected electron are studied as a function of the molecular orientation and internuclear distance. Both non-perturbative and perturbative regimes are examined. In the non-perturbative case, an interference pattern is visible but a main lobe, opposite to the electric field polarization direction, dominates the angular distribution. In contrast, in perturbation conditions the structure of interferences shows analogies to the Young-like interference pattern obtained in ionization of molecules by fast electron impacts. Finally, the strong dependence of these Young-like angular distributions on the internuclear distance is addressed. © 2005 IOP Publishing Ltd. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09534075_v38_n15_p2775_Rodriguez |
| institution |
Universidad de Buenos Aires |
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I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Approximation theory Charged particles Electromagnetic pulse Electromagnetic wave polarization Heavy ions Hydrogen Perturbation techniques Angular distributions Atomic ionization Non-perturbative Coulomb-Volkov approach Ultra-short electromagnetic pulses Ionization |
| spellingShingle |
Approximation theory Charged particles Electromagnetic pulse Electromagnetic wave polarization Heavy ions Hydrogen Perturbation techniques Angular distributions Atomic ionization Non-perturbative Coulomb-Volkov approach Ultra-short electromagnetic pulses Ionization Rodríguez, V.D. Macri, P. Gayet, R. H2+ ionization by ultra-short electromagnetic pulses investigated through a non-perturbative Coulomb-Volkov approach |
| topic_facet |
Approximation theory Charged particles Electromagnetic pulse Electromagnetic wave polarization Heavy ions Hydrogen Perturbation techniques Angular distributions Atomic ionization Non-perturbative Coulomb-Volkov approach Ultra-short electromagnetic pulses Ionization |
| description |
The sudden Coulomb-Volkov theoretical approximation has been shown to well describe atomic ionization by intense and ultra-short electromagnetic pulses, such as pulses generated by very fast highly-charged ions. This approach is extended here to investigate single ionization of homonuclear diatomic molecules by such pulses in the framework of one-active electron. Under particular conditions, a Young-like interference formula can approximately be factored out. Present calculations show interference effects originating from the molecular two-centre structure. Fivefold differential angular distributions of the ejected electron are studied as a function of the molecular orientation and internuclear distance. Both non-perturbative and perturbative regimes are examined. In the non-perturbative case, an interference pattern is visible but a main lobe, opposite to the electric field polarization direction, dominates the angular distribution. In contrast, in perturbation conditions the structure of interferences shows analogies to the Young-like interference pattern obtained in ionization of molecules by fast electron impacts. Finally, the strong dependence of these Young-like angular distributions on the internuclear distance is addressed. © 2005 IOP Publishing Ltd. |
| format |
JOUR |
| author |
Rodríguez, V.D. Macri, P. Gayet, R. |
| author_facet |
Rodríguez, V.D. Macri, P. Gayet, R. |
| author_sort |
Rodríguez, V.D. |
| title |
H2+ ionization by ultra-short electromagnetic pulses investigated through a non-perturbative Coulomb-Volkov approach |
| title_short |
H2+ ionization by ultra-short electromagnetic pulses investigated through a non-perturbative Coulomb-Volkov approach |
| title_full |
H2+ ionization by ultra-short electromagnetic pulses investigated through a non-perturbative Coulomb-Volkov approach |
| title_fullStr |
H2+ ionization by ultra-short electromagnetic pulses investigated through a non-perturbative Coulomb-Volkov approach |
| title_full_unstemmed |
H2+ ionization by ultra-short electromagnetic pulses investigated through a non-perturbative Coulomb-Volkov approach |
| title_sort |
h2+ ionization by ultra-short electromagnetic pulses investigated through a non-perturbative coulomb-volkov approach |
| url |
http://hdl.handle.net/20.500.12110/paper_09534075_v38_n15_p2775_Rodriguez |
| work_keys_str_mv |
AT rodriguezvd h2ionizationbyultrashortelectromagneticpulsesinvestigatedthroughanonperturbativecoulombvolkovapproach AT macrip h2ionizationbyultrashortelectromagneticpulsesinvestigatedthroughanonperturbativecoulombvolkovapproach AT gayetr h2ionizationbyultrashortelectromagneticpulsesinvestigatedthroughanonperturbativecoulombvolkovapproach |
| _version_ |
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