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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 64, Iss. 11 — Nov. 1, 1974
  • pp: 1526–1530

Irradiance fluctuations of a spherical wave propagating under saturation conditions

H. T. Yura  »View Author Affiliations


JOSA, Vol. 64, Issue 11, pp. 1526-1530 (1974)
http://dx.doi.org/10.1364/JOSA.64.001526


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Abstract

The physical model of strong optical scintillation of plane waves is extended to the case of spherical-wave propagation. The spherical-wave amplitude filter function is derived and compared to the corresponding plane-wave result. Specifically, we calculate the spherical- to plane-wave log-amplitude-variance ratio. For weak fluctuations, our results are identical to the results of perturbation theory, with which the spherical-wave log-amplitude variance is less than the corresponding plane-wave result. On the other hand, for’-strong fluctuations (i.e., in the saturation regime), the plane- and spherical-wave log-amplitude variances saturate to the same constant value. Expressions are presented, in the saturation regime, for the plane- and spherical-wave log-amplitude covariance function and compared with the corresponding results in the regime of weak fluctuations.

Citation
H. T. Yura, "Irradiance fluctuations of a spherical wave propagating under saturation conditions," J. Opt. Soc. Am. 64, 1526-1530 (1974)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-64-11-1526

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