Engineering equations for characterizing non-linear laser intensity propagation in air with loss

Optics Express
Thomas KarrJustin D Mansell

Abstract

The propagation of high peak-power laser beams in real atmospheres will be affected at long range by both linear and nonlinear effects contained therein. Arguably, J. H. Marburger is associated with the mathematical characterization of this phenomenon. This paper provides a validated set of engineering equations for characterizing the self-focusing distance from a laser beam propagating through non-turbulent air with, and without, loss as well as three source configurations: (1) no lens, (2) converging lens and (3) diverging lens. The validation was done against wave-optics simulation results. Some validated equations follow Marburger completely, but others do not, requiring modification of the original theory. Our results can provide a guide for numerical simulations and field experiments.

References

Nov 13, 2013·Optics Express·Magali DurandJacques Dubois
Jan 13, 2017·Optics Letters·B HafiziG DiComo

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