Electronic coherences in argon through interfering one- and two-photon ionization processes in the vicinity of Feshbach resonances

The role of Rydberg autoionizing states in interfering one- and two-photon ionization paths is theoretically investigated in atomic Ar. The angularly resolved photoionization cross sections for each individual path is provided. By varying the relative optical phase between the two pulses the phase d...

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Detalles Bibliográficos
Autores: Bello Romero, Roger Yulier, Borràs, Vicent J., González Vázquez, Jesús, Martín García, Fernando
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/716026
Acceso en línea:http://hdl.handle.net/10486/716026
https://dx.doi.org/10.1103/PhysRevResearch.4.043028
Access Level:acceso abierto
Palabra clave:Argon
Photoelectrons
Photoionization
Two photon processes
Química
Descripción
Sumario:The role of Rydberg autoionizing states in interfering one- and two-photon ionization paths is theoretically investigated in atomic Ar. The angularly resolved photoionization cross sections for each individual path is provided. By varying the relative optical phase between the two pulses the phase difference between the two interfering paths is extracted. The retrieved phase difference and the photoelectron angular distributions exhibit a strong dependence on the photon energy in the vicinity of the resonant states. In contrast to previous results obtained in atomic Ne, the phase difference features a smooth dependence with photoelectron emission angle