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A polarized CARS investigation of the fine structure population inversion of Cl atoms from laser photolysis of ICl and the quenching of Cl(2 P 1/2) by O2

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Abstract

The time resolved polarized CARS technique has been used to detect Cl atoms produced by photolysis of ICl in the presence and absence of O2. A population inversion was observed between the ground state electronic levels Cl(2 P 1/2) and Cl(2 P 3/2). The rate constant for Cl(2 P 1/2) decay (quenching + reaction) in ICl was determined to be (3.2±0.2)×10−13 cm3/molecule×s; the rate constant for Cl(2 P 3/2) reaction with ICl was determined to be (7.8±0.5)×10−12 cm3/molecule×s; and the rate constant for Cl(2 P 1/2) quenching by O2 was determined to be (1.9±0.2)×10−13 cm3/molecule×s.

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  1. Lixin Wang & W. E. Jones

    Present address: Department of Chemistry, University of Windsor, N9B 3P4, Windsor, ON, Canada

Authors and Affiliations

  1. Department of Chemistry, Saint Mary's University, B3H 3C3, Halifax, Nova Scotia, Canada

    Lixin Wang & W. E. Jones

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  1. Lixin Wang
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  2. W. E. Jones
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Wang, L., Jones, W.E. A polarized CARS investigation of the fine structure population inversion of Cl atoms from laser photolysis of ICl and the quenching of Cl(2 P 1/2) by O2 . Appl. Phys. B 54, 52–56 (1992). https://doi.org/10.1007/BF00331734

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  • DOI: https://doi.org/10.1007/BF00331734

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