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Proceedings Paper

Self-Focusing And Self-Defocusing Of A Tea Co[sub]2[/sub] Laser Pulse In CDF[sub]3[/sub] Vapor
Author(s): P Galarneau; Y Beaudoin; S L Chin
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Paper Abstract

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.

Paper Details

Date Published: 25 November 1986
PDF: 5 pages
Proc. SPIE 0669, Laser Applications in Chemistry, (25 November 1986); doi: 10.1117/12.938929
Show Author Affiliations
P Galarneau, Universite Laval (Canada)
Y Beaudoin, Universite Laval (Canada)
S L Chin, Universite Laval (Canada)

Published in SPIE Proceedings Vol. 0669:
Laser Applications in Chemistry
D. K. Evans, Editor(s)

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