Two-scale solutions for intensity fluctuations in strong scattering

Shimshon Frankenthal, Alan M. Whitman, Mark J. Beran

Research output: Contribution to journalArticlepeer-review

63 Scopus citations


An exact integrodifferential equation is derived for a certain transform of the four-point coherence function by using a two-scale embedding procedure. The solution is expanded in an asymptotic series in the inverse strongscattering parameter, the terms of which are solutions of a hierarchy of simple first-order partial differential equations. Further approximations simplify the retransformation and display the four-point coherence in a useful, numerically convenient form. Results compare favorably with existing numerical computations of the scintillation index and the covariance in two-dimensional plane-wave propagation. Results for three-dimensional plane-wave propagation are also presented.

Original languageEnglish
Pages (from-to)585-597
Number of pages13
JournalJournal of the Optical Society of America A: Optics and Image Science, and Vision
Issue number6
StatePublished - 1 Jan 1984


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