A S Alnaser et al 2006 J. Phys. B: At. Mol. Opt. Phys. 39 S485 doi:10.1088/0953-4075/39/13/S21
A S Alnaser1,2, I Litvinyuk1, T Osipov1, B Ulrich1, A Landers3, E Wells4, C M Maharjan1, P Ranitovic1, I Bochareva1, D Ray1 and C L Cocke1
Show affiliationsWe present momentum images of the ionic products from the ionization of D2 and C2H2 by short laser pulses. For D2, we use a pump–probe approach to investigate the dependence of the enhanced ionization on the internuclear distance. Evidence for two (not well separated) regions of enhancement is found near internuclear distances of 6 and 10 au. In the case of acetylene, we report clear evidence for the production of both acetylene and vinylidene dications with kinetic energy releases similar to those reported earlier by core electron removal. We also find very different angular distributions for the fragments in the two channels, consistent with a finite time for the isomerization.
33.80.Gj Diffuse spectra; predissociation, photodissociation
Issue 13 (14 July 2006)
Received 12 December 2005, in final form 17 January 2006
Published 22 June 2006
A S Alnaser et al 2006 J. Phys. B: At. Mol. Opt. Phys. 39 S485
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