25 November 1986 Self-Focusing And Self-Defocusing Of A Tea Co2 Laser Pulse In CDF3 Vapor
Author Affiliations +
Proceedings Volume 0669, Laser Applications in Chemistry; (1986); doi: 10.1117/12.938929
Event: 1986 Quebec Symposium, 1986, Quebec City, Canada
We observed self-focusing and self-defocusing of a TEA CO2 laser pulse in CDF3 vapor under different conditions. The experimental parameters that we varied are: the pressure inside the interaction cell, the frequency of the laser line, the intensity and the temporal length of the pulse. We have shown that it is possible to pass from self-focusing to self-defocusing by only increasing the energy of the laser pulse of a fixed temporal length. We propose a physical model using the selection rule of the molecular transition that can explain these experimental results.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
P Galarneau, Y Beaudoin, S L Chin, "Self-Focusing And Self-Defocusing Of A Tea Co2 Laser Pulse In CDF3 Vapor", Proc. SPIE 0669, Laser Applications in Chemistry, (25 November 1986); doi: 10.1117/12.938929; https://doi.org/10.1117/12.938929

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