A THEORETICAL INVESTIGATION OF THE AXIAL INTENSITY DISTRIBUTION OF TRUNCATED MQBG BEAM

IN A TURBULENT ATMOSPHERE

 

S. Hennani1,2, S. Barmaki2, L. Ez-zariy 1, H. Nebdi1, A. Belafhal1*

1 Laboratoire de Physique Nucléaire, Atomique et Moléculaire,

Département de Physique, Faculté des Sciences, Université Chouaïb Doukkali

B.P. 20, El Jadida 24000, Morocco

2 Laboratoire de Physique Computationnelle et Photonique

Secteur des Sciences, Université de Moncton-campus de Shippagan,

Shippagan, New-Brunswick, E8S 1P6, Canada

* Corresponding author. E-mail: belafhal@gmail.com

Received: 20 December 2012; revised version accepted: 29 April 2013

 

Abstract

     Based on Huygens-Fresnel diffraction integral, by means of the expansion of a hard-edged aperture function into a finite sum of complex Gaussian function and with help of the Rytov approximation, an approximate analytical expression of modified Bessel modulated Gaussian beam with quadrature radial dependence (MQBG beam) passing through an apertured turbulent atmosphere is derived in this work. The influence of some factors, including incident beam parameters, size aperture and turbulence parameters on propagation characteristics are numerically analyzed in this study.

 

Keywords: MQBG beam; Huygens-Fresnel integral; Hard aperture function; Turbulence; Rytov approximation.

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