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2007 | 112 | 5 | 817-822
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Calculation of the Highly Excited SF_6 Vibrational State Distributions and Dissociation Yields in Different Gas Mixtures

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Influence of the buffer gas on the multiphoton absorption and dissociation in different mixtures was investigated. Simple method based on the empirical and theoretical vibrational energy distribution is applied for high fluence regime. Collisional effects of buffer gas (Ar) are introduced to enhance the absorption and relaxation of irradiated molecules (SF_6 and C_2H_4). Functional dependences of mean number of absorbed photons per molecule (ீ nு_{total}) on the molecular excitation level are presented, enabling us to confirm or predict the level of excitation, number of molecules directly involved in the absorption process and dissociated during the laser pulse.
  • Institute of Nuclear Sciences"Vinca", P.O. Box 522, 11001 Beograd, Serbia
  • Institute of Physics, Pregrevica 118, 11080 Beograd - Zemun, Serbia
  • Institute of Physics, Pregrevica 118, 11080 Beograd - Zemun, Serbia
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