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Research Paper | Physics Science | Sudan | Volume 5 Issue 5, May 2016

Thermal Influence Occurring Deviations in the Parameters of the Laser Beam Propagating through Atmospheric Air

Omar B. Yousef

Abstract: This study is aimed to determine deviations in the parameters of the laser beam which were caused by heat. In addition, the initial parameters of the laser beam before the effect of heat comparing with the parameters determined after the heat effect. As well as, based on the fluctuations occur in the parameters of the laser beam, the refractive index structure, inner scale, outer scale, and atmospheric coherence have been determined. By considering the laser beam propagates through atmospheric turbulence experience random changes, the propagation characteristic of the laser has been determined. The setup of experiment has been designed to make laser beam propagation through cross- section of turbulence air. The experiment took place in dark room and was structurally closed off from the outside environment. The results have been analyzed by both of origin program software (version-8), and excel software program.

Keywords: the refractive index structure, atmospheric coherence diameter, Gaussian function

Edition: Volume 5 Issue 5, May 2016,

Pages: 264 - 269

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