Pulse-Bandwidth Dependence of Coherent Phase Control of Resonance-Mediated (2+1) Three-Photon Absorption

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dc.creatorGandman, Andrey
dc.creatorChuntonov, Lev
dc.creatorRybak, Leonid
dc.creatorAmitay, Zohar
dc.date2007-09-05
dc.date.accessioned2026-07-07T08:45:13Z
dc.date.available2026-07-07T08:45:13Z
dc.descriptionWe study in detail coherent phase control of femtosecond resonance-mediated (2+1) three-photon absorption and its dependence on the spectral bandwidth of the excitation pulse. The regime is the weak-field regime of third perturbative order. The corresponding interference mechanism involves a group of three-photon excitation pathways that are on resonance with the intermediate state and a group of three-photon excitation pathways that are near resonant with it. The model system of the study is atomic sodium (Na), for which experimental and numerical-theoretical results are obtained. Prominent among the results is our finding that with simple proper pulse shaping an increase in the excitation bandwidth leads to a corresponding increase in the enhancement of the three-photon absorption over the absorption induced by the (unshaped) transform-limited pulse. For example, here, a 40-nm bandwidth leads to an order-of-magnitude enhancement over the transform-limited absorption.
dc.description23 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/0709.0601
dc.identifierhttp://arxiv.org/abs/0709.0601
dc.identifierPhys. Rev. A 76, 053419 (2007)
dc.identifierdoi:10.1103/PhysRevA.76.053419
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/142900
dc.subjectAtomic Physics
dc.subjectChemical Physics
dc.titlePulse-Bandwidth Dependence of Coherent Phase Control of Resonance-Mediated (2+1) Three-Photon Absorption
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