volume | PIER Journals

2005-02-05

Propagation of a Laser Beam through a Plane and Free Turbulent Heated Air Flow: Determination of the Stochastic Characteristics of the Laser Beam Random Direction and Some Experimental Results

Elisabeth Ngo Nyobe,

Dr. Elisabeth Ngo Nyobe

Department of Mathematics and Physical Science

Universite de Yaounde I

Cameroun

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Elkana Pemha

Prof. Elkana Pemha

Faculte des Sciences

Universite de Yaounde I

Cameroun

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, Vol. 53, 31-53, 2005

doi:10.2528/PIER04073001

Abstract

The propagation of waves in a random medium is a very complex phenomena which presents numerous difficulties in its experimental approach, and in its theoretical analysis. In this work, the case of a laser beam direction during its random propagation through a hot free jet of air, is considered using geometrical optics. Some experiments are done in the jet and from the hypothesis of the Markovian process, the main stochastic characteristics of the laser beam direction are studied. In addition, the sensitivity of the probability density of the beam random direction with respect to the jet turbulent diffusion is determined.

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Elisabeth Ngo Nyobe, and Elkana Pemha, "Propagation of a Laser Beam through a Plane and Free Turbulent Heated Air Flow: Determination of the Stochastic Characteristics of the Laser Beam Random Direction and Some Experimental Results," , Vol. 53, 31-53, 2005.
doi:10.2528/PIER04073001

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