Frequency-Domain Coherent Control of Femtosecond Two-Photon Absorption: Intermediate-Field vs. Weak-Field Regime

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dc.creatorChuntonov, Lev
dc.creatorRybak, Leonid
dc.creatorGandman, Andrey
dc.creatorAmitay, Zohar
dc.date2007-09-05
dc.date.accessioned2026-07-07T08:55:56Z
dc.date.available2026-07-07T08:55:56Z
dc.descriptionCoherent control of femtosecond two-photon absorption in the intermediate-field regime is analyzed in detail in the powerful frequency domain using an extended 4th-order perturbative description. The corresponding absorption is coherently induced by the weak-field non-resonant two-photon transitions as well as by four-photon transitions involving three absorbed photons and one emitted photons. The interferences between these two groups of transitions lead to a difference between the intermediate-field and weak-field absorption dynamics. The corresponding interference nature (constructive or destructive) strongly depends on the detuning direction of the pulse spectrum from half the two-photon transition frequency. The model system of the study is atomic sodium, for which both experimental and theoretical results are obtained. The detailed understanding obtained here serves as a basis for coherent control with rationally-shaped femtosecond pulses in a regime of sizable absorption yields.
dc.description25 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/0709.0615
dc.identifierhttp://arxiv.org/abs/0709.0615
dc.identifierJ. Phys. B: At. Mol. Opt. Phys. 41 (2008) 035504 (11pp)
dc.identifierdoi:10.1088/0953-4075/41/3/035504
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/146442
dc.subjectAtomic Physics
dc.subjectChemical Physics
dc.titleFrequency-Domain Coherent Control of Femtosecond Two-Photon Absorption: Intermediate-Field vs. Weak-Field Regime
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