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Optical phase and the ionization-dissociation dynamics of excited H2

Source: J. Chem. Phys. 132, 024313 (2010); doi:10.1063/1.3285710

Published 14 January 2010

KEYWORDS and PACS
Keywords
PACS
  • 33.80.Eh
    Autoionization, photoionization, and photodetachment of molecules
  • 33.80.Gj
    Diffuse molecular spectra; predissociation, photodissociation
  • 33.20.Sn
    Rotational analysis (molecular spectra)
  • 31.15.xv
    Molecular dynamics and other numerical methods in atomic and molecular physics
  • 82.50.Hp
    Chemical processes caused by visible and UV light
  • YEAR: 2010
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PUBLICATION DATA
ISSN:
1553-9601 (online)
Publisher:
AIP is a member of CrossRef AIP
A. Kirrander,1 H. H. Fielding,1 and Ch. Jungen2
1Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
2Laboratoire Aimé Cotton du CNRS, Université de Paris-Sud, 91405 Orsay, France
We investigate the influence of optical phase on the dynamics of hydrogen molecules excited to a spectral region with competition between predominantly rotational ionization, and dissociation. We show that an appropriate choice of optical phase changes the relative timing of the ionization and dissociation. Furthermore, the temporal width of the ionization and dissociation fluxes can also be controlled, in a matter-wave analogy of transform-limited optical pulses. The close link between the optical phase and the photoinduced electronic and molecular dynamics has important implications for femtochemistry. ©2010 American Institute of Physics
History: Received 4 September 2009; accepted 13 December 2009; published 14 January 2010
Permalink: http://link.aip.org/link/?JCPSA6/132/024313/1

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