Abstract
The observations of long-distance self-guided femtosecond pulse propagation in air and other gasses has attracted considerable attention since the effect has been reported.1 The self-guiding of the intense laser pulse in gaseous media is a result of balance between two competing nonlinear effects: Kerr effect leading to self-focusing, and defocusing effect of the electron plasma created by the multiphoton ionization.2
© 2001 Optical Society of America
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