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Intense light propagation in air
Alexey Sukhinin
UNM
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Intense light propagation in air Alexey Sukhinin UNM |
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ABSTRACT Several ongoing experiments deal with self-filamentation of high power laser beam. Short pulses of high peak intensity have been seen to create their own waveguide or filament during the propagation in air. It is generally believed that the waveguiding results from a balance between self-focusing Kerr effect, difraction and self-defocusing due to a low density electron plasma created by multiphoton ionization of air. Filaments can be used in different applications, such as LIDAR, laser induced lightning, directed energy and others. The possible propagation of filament is dependent on the input power. The current work consists of finding the solution for the modeling equations whose amplitude doesn't change in propagation and presenting a stability analysis for this solution. |