Abstract
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.
Original language | English |
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Article number | 063419 |
Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
Volume | 87 |
Issue number | 6 |
DOIs | |
Publication status | Published - 20 Jun 2013 |