Time Resolution of Collapse Events during the Propagation of Ultraviolet Light Filaments
Teresa J. Fondren
Broschiertes Buch

Time Resolution of Collapse Events during the Propagation of Ultraviolet Light Filaments

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Long distance propagation, or filamentation, of short, intense laser pulses is possible through the balance of two effects: self-focusing, when a nonlinear index of refraction of air is induced by high intensities, and de-focusing, due to the plasma created by the pulse. Applications for filamentation include areas such as remote sensing and directed energy. A split-step spectral propagation simulation is used to model the behavior of a high intensity ultraviolet laser pulse propagating through air. Convergence of femtocecond duration collapses that form on the leading edge of the pulse in the...