AVERAGE SPECKLE SIZE AS A FUNCTION OF INTENSITY THRESHOLD LEVEL - COMPARISON OF EXPERIMENTAL MEASUREMENTS WITH THEORY

被引：29

作者：

ALEXANDER, TL

HARVEY, JE

WEEKS, AR

机构：

[1] Center for Research and Education in Optics and Lasers, University of Central Florida, Orlando, FL, 32826

来源：

APPLIED OPTICS | 1994年 / 33卷 / 35期

关键词：

SPECKLE PHENOMENA; RANDOM SURFACE SCATTERING; BINARY SPECKLE IMAGING;

D O I：

10.1364/AO.33.008240

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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.

引用

页码：8240 / 8250

页数：11

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