Laser Chemistry

Laser Chemistry / 1982 / Article

Open Access

Volume 1 |Article ID 192152 |

R. Barbe, J.-P. Astruc, A. Lagreze, J.-P. Schermann, "Spectral and Temperature Dependence of Laser Induced Dissociative Attachment in SF6", Laser Chemistry, vol. 1, Article ID 192152, 20 pages, 1982.

Spectral and Temperature Dependence of Laser Induced Dissociative Attachment in SF6

Received12 Mar 1982
Accepted06 May 1982


We consider the influence of resonant laser excitation upon the dissociative reaction between SF6 molecules and very low energy electrons. Experimentally, the use of valence electrons of atoms in Rydberg states ensures a well-defined energy resolution of the scattering electrons in the crossed beam apparatus. A spectroscopic model of the infrared absorption of CO2 laser radiation by SF6 gives a fair determination of the energy levels and vibrational transitions involved in the dissociative process. This reaction between highly excited atoms and a molecule is interpreted as a three step process: attachment of a quasi-free electron, followed by the interaction between the atomic ionic core and the negative molecular ion leading to a partial stabilization and, finally, the competition between the dissociating and the autodetachment channels.

Copyright © 1982 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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