Vol. 29, issue 04, article # 8

Abstract:

Based on the numerical solution of the parabolic wave equation for the complex spectral amplitude of the wave field the propagation of a short pulsed Laguerre–Gaussian beam with femtosecond duration was studied. It has been shown that the difraction broadening of the Laguerre–Gaussian beam decreases with the pulse duration in comparison with continuous wave radiation.

Keywords:

Laguerre–Gaussian beam, short pulse, parabolic wave equation

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