Laser Coulomb-explosion imaging of small molecules

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DOIResolve DOI: http://doi.org/10.1103/PhysRevA.71.013415
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TypeArticle
Journal titlePhysical Review A (Atomic, Molecular, and Optical Physics)
Volume71
Issue1
Pages013415-1013415-5; # of pages: 5
AbstractWe use intense few-cycle laser pulses to ionize molecules to the point of Coulomb explosion. We use Coulomb’s law or ab initio potentials to reconstruct the molecular structure of D2O and SO2 from the correlated momenta of exploded fragments. For D2O, a light and fast system, we observed about 0.3Å and 15° deviation from the known bond length and bond angle. By simulating the Coulomb explosion for equilibrium geometry, we showed that this deviation is mainly caused by ion motion during ionization. Measuring three-dimensional structure with half bond length resolution is sufficient to observe large-scale rearrangements of small molecules such as isomerization processes.
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LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedYes
NPARC number12339348
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Record identifier7320bcc5-83fb-4b3e-ae16-50976d0f02a9
Record created2009-09-11
Record modified2016-05-09
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