Laser Coulomb-explosion imaging of small molecules

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Title Laser Coulomb-explosion imaging of small molecules
Author Legare, F.; Lee, K.F.; Litvinyuk, Igor; Dooley, P.W.; Wesolowski, S.S.; Bunker, P.R.; Dombi, P.; Krausz, F.; Bandrauk, A.D.; Villenueve, D.M.; Corkum, P.B.
Journal Name Physical Review A (Atomic, Molecular and Optical Physics)
Year Published 2005
Place of publication Ridge, NY
Publisher American Physical Society
Abstract We 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 0.3 Angstrom and 15degrees 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.
Peer Reviewed Yes
Published Yes
Alternative URI
Volume 71
Issue Number 1
Page from 013415-1
Page to 013415-5
ISSN 1050-2947
Date Accessioned 2010-08-09
Language en_AU
Research Centre Centre for Quantum Dynamics
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Atomic and Molecular Physics
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1x

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