Theoretical wave structure function when the effect of the outer scale is significant

    Authors

    R. L. Lucke;C. Y. Young

    Comments

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    Abbreviated Journal Title

    Appl. Optics

    Keywords

    OPTICAL MEASUREMENTS; TURBULENCE; FLUCTUATIONS; FRONT; MODEL; Optics

    Abstract

    The wave structure function (WSF) for a plane wave, calculated from the basic Rytov theory, is usually expressed as 6.88(r/r(0))(5/3), but this does not include the effect of a finite outer scale (or of a nonzero inner scale) of turbulence. When separation distance r is only 5% of the outer scale, this expression overpredicts the WSF by a factor of approximately 2. Accurate evaluations of the Rytov formulas are given for the WSFs of plane and spherical waves in Kolmogorov and von Karman turbulence and for the structure function of the atmosphere's index of refraction. Simple formulas make the results easy to use.

    Journal Title

    Applied Optics

    Volume

    46

    Issue/Number

    4

    Publication Date

    1-1-2007

    Document Type

    Article

    Language

    English

    First Page

    559

    Last Page

    569

    WOS Identifier

    WOS:000243782500016

    ISSN

    1559-128X

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