Observation of Above-Threshold Dissociation of Na$_2^+$ in Intense Laser Fields

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dc.creatorZhang, Qun
dc.creatorHepburn, John W.
dc.creatorShapiro, Moshe
dc.date2008-06-17
dc.date2008-08-24
dc.date.accessioned2026-07-07T09:57:47Z
dc.date.available2026-07-07T09:57:47Z
dc.descriptionWe report the observation of above-threshold dissociation of a multielectron molecular system, Na$_2^+$. The process is due to continuum-continuum transitions in a field-dressed molecular continuum. Three well resolved fragmentation channels with different kinetic energy release patterns have been detected, of which, two are associated with ordinary photodissociation via light-induced potentials into Na(3s) + Na$^+$ and Na(3p) + Na$^+$, and one with continuum-continuum transitions and above-threshold dissociation into Na(3p) + Na$^+$. We show that when we dress this molecule with a field whose intensity is ~3 x 10$^{12}$ W/cm$^2$, above-threshold dissociation prevails over other processes, such as field-ionization followed by Coulomb explosion.
dc.description15 pages, 3 figures, accepted to Phys. Rev. A (Rapid Communications)
dc.identifierhttps://arxiv.org/abs/0806.2762
dc.identifierhttp://arxiv.org/abs/0806.2762
dc.identifierPhys. Rev. A 78, 021403(R), 2008
dc.identifierdoi:10.1103/PhysRevA.78.021403
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/167477
dc.subjectChemical Physics
dc.subjectAtomic and Molecular Clusters
dc.titleObservation of Above-Threshold Dissociation of Na$_2^+$ in Intense Laser Fields
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