Competition between collisions and optical pumping in unimolecular reactions induced by monochromatic infrared radiation |
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| Authors: | R. Duperrex H. van Den Bergh |
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| Affiliation: | Institut de Chimie Physique, Ecole Polytechnique Fédérale de Lausanne, Switzerland |
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| Abstract: | The optical pumping process in infrared multiphoton induced unimolecular reactions is studied by measuring the pressure dependence of the reaction yield as a function of the laser energy fluence and pulse shape. The dissociation of sulphur hexafluoride is taken as a model reaction. Rate constants for optical pumping near the reaction threshold were found to be directly proportional to the laser intensity for the range of conditions applied. |
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