Energy threshold effects in the collisionless dissociation of polyatomic molecules by ir laser radiation
- 15 May 1977
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 30 (10) , 514-516
- https://doi.org/10.1063/1.89237
Abstract
The threshold for collisionless dissociation of SF6, SiF4, and CF2Cl2 by focused CO2 laser radiation has been measured. This threshold is a laser pulse energy effect and, within experimental error, is found to be the same for all three gases. Provided collisions cannot occur during the laser pulse, the degree of dissociation produced depends only on the energy in the pulse, which is consistent with simple adiabatic vibrational heating of the molecules by the laser.Keywords
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