Fano's Propensity Rule in Angle-Resolved Attosecond Pump-Probe Photoionization.
Journal
Physical review letters
ISSN: 1079-7114
Titre abrégé: Phys Rev Lett
Pays: United States
ID NLM: 0401141
Informations de publication
Date de publication:
27 Sep 2019
27 Sep 2019
Historique:
revised:
24
05
2019
received:
14
11
2018
entrez:
8
11
2019
pubmed:
8
11
2019
medline:
8
11
2019
Statut:
ppublish
Résumé
In a seminal article, Fano predicts that absorption of light occurs preferably with increase of angular momentum. We generalize Fano's propensity rule to laser-assisted photoionization, consisting of absorption of an extreme-ultraviolet photon followed by absorption or emission of an infrared photon. The predicted asymmetry between absorption and emission leads to incomplete quantum interference in attosecond photoelectron interferometry. It explains both the angular dependence of the photoionization time delays and the delay dependence of the photoelectron angular distributions. Our theory is verified by experimental results in Ar in the 20-40 eV range.
Identifiants
pubmed: 31697513
doi: 10.1103/PhysRevLett.123.133201
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM