Title

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

Authors

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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