Curvature aided long range propagation of short laser pulses in the atmosphere

Date

2013-3

Author

Yedierler, Burak

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The pre-filamentation regime of propagation of a short and intense laser pulse in the atmosphere is considered. Spatiotemporal self-focusing dynamics of the laser beam are investigated by calculating the coupled differential equations for spot size, pulse length, phase, curvature, and chirp functions of a Gaussian laser pulse via a variational technique. The effect of initial curvature parameter on the propagation of the laser pulse is taken into consideration. A method relying on the adjustment of the initial curvature parameter can expand the filamentation distance of a laser beam of given power and chirp is proposed.

Subject Keywords

Chirped optical pulses, Variational approach, Ultra-short, Filamentation, Dynamics, Media, Collapse, Distance, Ionization, Mechanisms

URI

https://hdl.handle.net/11511/28445

Collections

Department of Physics, Article