Average Speckle Size As A Function Of Intensity Threshold Level - Comparison Of Experimental Measurements With Theory

    Authors

    T. L. Alexander; J. E. Harvey;A. R. Weeks

    Comments

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    Abbreviated Journal Title

    Appl. Optics

    Keywords

    SPECKLE PHENOMENA; RANDOM SURFACE SCATTERING; BINARY SPECKLE IMAGING; Optics

    Abstract

    Speckle phenomena result whenever spatially coherent radiation is reflected from a rough surface or propagated through a random medium such as atmospheric turbulence. Speckle characteristics are therefore a major concern in many laser-imaging or wave-propagation applications. We present the results of experimental measurements of target-induced speckle patterns produced in the laboratory from a variety of targets and illumination conditions. We then compare these experimental measurements with a theoretical model for the average speckle size as a function of intensity threshold level. Excellent agreement is obtained for intensity threshold levels greater than approximately twice the mean intensity level.

    Journal Title

    Applied Optics

    Volume

    33

    Issue/Number

    35

    Publication Date

    1-1-1994

    Document Type

    Article

    Language

    English

    First Page

    8240

    Last Page

    8250

    WOS Identifier

    WOS:A1994PZ95200012

    ISSN

    0003-6935

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