Observation of multiple ionization pathways for OCS in an intense laser field resolved by three-dimensional covariance mapping and visualized by hierarchical ionization topology

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dc.creatorBryan, W. A.
dc.creatorNewell, W. R.
dc.creatorSanderson, J. H.
dc.creatorLangley, A. J.
dc.date2006-10-10
dc.date.accessioned2026-07-07T07:29:51Z
dc.date.available2026-07-07T07:29:51Z
dc.descriptionThe two- and three-body Coulomb explosion of carbonyl sulfide (OCS) by 790 nm, 50 fs laser pulses focussed to $\approx $ 10$^{16}$ Wcm$^{-2}$ has been investigated by three-dimensional covariance mapping technique. For the first time in a triatomic molecule, a single charge state, in this case the trication, has been observed to dissociate into two distinct energy channels. With the aid of a three dimensional visualization technique to reveal the ionization hierarchy, evidence is presented for the existence of two sets of ionization pathways resulting from these two initial states. While one group of ions can be modeled using a Classical enhanced ionization model, the second group, consisting of mainly asymmetric channels, can not. The results provide clear evidence that an enhanced ionization approach must also be accompanied by an appreciation of the effects of excited ionic states and multi-electronic processes.
dc.description12 pages, 9 figures, accepted for publication in Phys. Rev. A, reference to follow
dc.identifierhttps://arxiv.org/abs/physics/0610058
dc.identifierhttp://arxiv.org/abs/physics/0610058
dc.identifierPhys. Rev. A, vol 74, art 053409 (2006)
dc.identifierdoi:10.1103/PhysRevA.74.053409
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/118274
dc.subjectChemical Physics
dc.subjectQuantum Physics
dc.titleObservation of multiple ionization pathways for OCS in an intense laser field resolved by three-dimensional covariance mapping and visualized by hierarchical ionization topology
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