Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Average speckle size as a function of intensity threshold level: comparison of experimental measurements with theory

Not Accessible

Your library or personal account may give you access

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.

© 1994 Optical Society of America

Full Article  |  PDF Article
More Like This
Wave optics simulation of atmospheric turbulence and reflective speckle effects in CO2 lidar

Douglas H. Nelson, Donald L. Walters, Edward P. MacKerrow, Mark J. Schmitt, Charles R. Quick, William M. Porch, and Roger R. Petrin
Appl. Opt. 39(12) 1857-1871 (2000)

Effects of intensity thresholding on the power spectrum of laser speckle

Alfred D. Ducharme, Glenn D. Boreman, and Donald R. Snyder
Appl. Opt. 33(13) 2715-2720 (1994)

Optical remote sensing of surface roughness through the turbulent atmosphere

J. Fred Holmes, John S. Peacock, and Douglas C. Draper
Appl. Opt. 33(33) 7770-7776 (1994)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (19)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (31)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved