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Journal Article

Transient-absorption phases with strong probe and pump pulses

MPS-Authors

Becquet,  Vadim
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society,;

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Cavaletto,  Stefano M.
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society,;

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Fulltext (public)

1703.09182.pdf
(Preprint), 4MB

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Citation

Becquet, V., & Cavaletto, S. M. (2018). Transient-absorption phases with strong probe and pump pulses. Journal of Physics B: Atomic, Molecular and Optical Physics, 51: 035501. doi:10.1088/1361-6455/aa8e6a.


Cite as: http://hdl.handle.net/21.11116/0000-0000-F4C2-1
Abstract
The quantum dynamics of a system of Rb atoms, modeled by a V-type three-level system interacting with intense probe and pump pulses, are studied. The time-delay-dependent transient-absorption spectrum of an intense probe pulse is thus predicted, when this is preceded or followed by a strong pump pulse. Numerical results are interpreted in terms of an analytical model, which allows us to quantify the oscillating features of the resulting transient-absorption spectra in terms of the atomic populations and phases generated by the intense pulses. Strong-field-induced phases and their influence on the resulting transient-absorption spectra are thereby investigated for different values of pump and probe intensities and frequencies, focusing on the atomic properties which are encoded in the absorption line shapes for positive and negative time delays.