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Proceedings Paper

Ionization Of Rare Gas Atoms By A CO[sub]2[/sub] Laser: Extreme Order Of Nonlinearity
Author(s): F Yergeau; S L Chin; P Lavigne
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Paper Abstract

Collisionless ionization of five of the rare gases has been observed using a CO2 laser, at intensities in the range 1013 - 1014 W/cm2, with a pulse duration of 1 ns. Calculations taking into account the space - and time - dependence of the laser pulse show that the ionization rate is a highly nonlinear function of intensity. It is shown that the nonlinearity is so strong that an "ON-OFF" hypothesis, stating that ionization is saturated as soon as it begins to appear, is sufficient to reproduce the experimental results.

Paper Details

Date Published: 21 October 1986
PDF: 7 pages
Proc. SPIE 0664, High Intensity Laser Processes, (21 October 1986); doi: 10.1117/12.938708
Show Author Affiliations
F Yergeau, Universite Laval (Canada)
S L Chin, Universite Laval (Canada)
P Lavigne, INRS-Energie (Canada)

Published in SPIE Proceedings Vol. 0664:
High Intensity Laser Processes
John A. Alcock, Editor(s)

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