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Opt Express. 2010 Jan 18;18(2):451-62. doi: 10.1364/OE.18.000451.

Log-amplitude variance for a Gaussian-beam wave propagating through non-Kolmogorov turbulence.

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  • 1National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin, China.

Abstract

In the past decades, both the increasing experimental evidences and some results of theoretical investigation on non-Kolmogorov turbulence have been reported. This has prompted the study of optical propagation in non-Kolmogorov atmospheric turbulence. In this paper, using a non-Kolmogorov power spectrum which owns a generalized power law instead of standard Kolmogorov power law value 11/3 and a generalized amplitude factor instead of constant value 0.033, the log-amplitude variances for a Gaussian-beam wave are derived in the weak-fluctuation regime for a horizontal path. The analytic expressions are obtained and then used to analyze the effect of spectral power-law variations on the log-amplitude fluctuations of Gaussian-beam wave.

PMID:
20173865
[PubMed - indexed for MEDLINE]
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