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Search for: [Abstrakt = We study the change in the degree of coherence of a partially coherent flat\-topped \(PCFT\) beam propagating through atmospheric turbulence. It is shown analytically that with a fixed set of source parameters and under a particular atmospheric turbulence model, a PCFT beam propagating through atmospheric turbulence reaches its maximum value of coherence after propagating a particular distance, and the effective width of the spectral degree of coherence also has its maximum value. This phenomenon is independent of the turbulence model used. We also study the effects of beam width values, the structure constant of turbulent media and the degree of coherence on effective width of spectral degree of coherence. The results are illustrated by numerically calculated curves]

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Kashani, F.D. Alavinejad, M. Ghafary, B. Gaj, Miron. Redakcja Urbańczyk, Wacław. Redakcja

2009
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