Femtosecond 2 + 1 Resonance-Enhanced Multiphoton Ionization Spectroscopy of the C-State in Molecular Oxygen

[Image: see text] Coincidence electron-cation imaging is used to characterize the multiphoton ionization of O(2) via the v = 4,5 levels of the 3s((3)Π(g)) Rydberg state. A tunable 100 fs laser beam operating in the 271–263 nm region is found to cause a nonresonant ionization across this wavelength r...

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Detalles Bibliográficos
Autores principales: Caballo, Ana, Huits, Anders J.T.M., Vredenborg, Arno, Balster, Michiel, Parker, David H., Horke, Daniel A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2021
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8543444/
https://www.ncbi.nlm.nih.gov/pubmed/34633817
http://dx.doi.org/10.1021/acs.jpca.1c05541
Descripción
Sumario:[Image: see text] Coincidence electron-cation imaging is used to characterize the multiphoton ionization of O(2) via the v = 4,5 levels of the 3s((3)Π(g)) Rydberg state. A tunable 100 fs laser beam operating in the 271–263 nm region is found to cause a nonresonant ionization across this wavelength range, with an additional resonant ionization channel only observed when tuned to the (3)Π(g)(v = 5) level. A distinct 3s → p wave character is observed in the photoelectron angular distribution for the v = 5 channel when on resonance.

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