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


Yedierler B.

PHYSICS OF PLASMAS, cilt.20, 2013 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 20 Konu: 3
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1063/1.4795305
  • Dergi Adı: PHYSICS OF PLASMAS

Özet

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. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4795305]