Open AccessExtraction of the attosecond time delay in atomic photoionization using the soft-photon approximation
Author(s) -
И. А. Иванов,
A. S. Kheifets
Publication year - 2013
Publication title -
physical review a
Language(s) - English
Resource type - Journals
eISSN - 1094-1622
pISSN - 1050-2947
DOI - 10.1103/physreva.87.063419
Subject(s) - attosecond , physics , photoionization , photon , atomic physics , coulomb , laser , quantum mechanics , ionization , ultrashort pulse , ion , electron
We use the soft-photon approximation to extract the Wigner time delay from atomic two-color photoionization experiments. Unlike the strong-field approximation, the present method does not require introduction of the Coulomb-laser coupling corrections and enables one to extract the Wigner time delay directly from attosecond time delay measurements.
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