Title

Experimental verification of theoretical model for speckle intensity excursion areas

Abstract

Speckle is inherently an interference phenomenon produced when a rough object or turbulent medium introduces some degree of randomness to a reflected or transmitted electromagnetic field. Speckle characteristics are therefore a major concern in many laser imaging or wave propagation applications. For many applications, a detailed description of speckle size as a function of intensity threshold level is desirable. Extensive experimental measurements of average speckle size as a function of intensity threshold level were therefore made for several different targets and illumination conditions. We then compare these measurements with a theoretical model for excursion areas of speckle intensity. Excellent agreement is obtained for intensity threshold levels greater than approximately twice the mean intensity level.

Publication Date

6-29-1994

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

2222

Number of Pages

485-498

Document Type

Article; Proceedings Paper

Identifier

scopus

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.178017

Socpus ID

5344278385 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/5344278385

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