Abstract
The Spectral characteristics of a radial Gaussian Schell-model (GSM) beam array propagating in non-Kolmogorov turbulence are investigated theoretically. The spectrum of the GSM beam array is shown to be greatly influenced by both the source and the non-Kolmogorov parameters. The effects of the propagation distance, the spatial coherence of the source, the ring radius and the beam number of the array beam, the generalized exponent, and the inner scale parameters of non-Kolmogorov turbulence on the spectrum are studied in detail. The results show that two identical spectral maxima exist for the normalized on-axis spectrum and a rapid transition in spectrum can occur when the above-mentioned parameters have specific critical values. The effects of these parameters on the relative spectral shift are also studied in detail.
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