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Angular dependence of photoemission time delay in helium

Heuser, S; Jiménez-Galán, A; Cirelli, C; Marante, Carlos; Sabbar, M; Boge, Robert; Lucchini, m; Gallmann, L; Ivanov, Igor; Kheifets, Anatoli; Dahlström, J M; Lindroth, E; Argenti, Luca; Martin, Fernando; Keller, Ursula


Time delays of electrons emitted from an isotropic initial state with the absorption of a single photon and leaving behind an isotropic ion are angle independent. Using an interferometric method involving XUV attosecond pulse trains and an IR-probe field in combination with a detection scheme, which allows for full three-dimensional momentum resolution, we show that measured time delays between electrons liberated from the 1s2 spherically symmetric ground state of helium depend on the emission...[Show more]

CollectionsANU Research Publications
Date published: 2016
Type: Journal article
Source: Physical Review A: Atomic, Molecular and Optical Physics
DOI: 10.1103/PhysRevA.94.063409
Access Rights: Open Access


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