Singularities in Speckled Speckle: Screening

TL;DR

This paper investigates how optical singularities are screened in complex speckle patterns formed by superimposing fields with vastly different correlation lengths, revealing unusual screening behaviors.

Contribution

It introduces the concept of speckled speckle and analyzes the screening of singularities in fields combining short- and long-range correlations.

Findings

Unusual screening phenomena observed in speckled speckle patterns

Correlation length disparity affects singularity distribution

New insights into optical singularity behavior in complex fields

Abstract

We study screening of optical singularities in random optical fields with two widely different length scales. We call the speckle patterns generated by such fields speckled speckle, because the major speckle spots in the pattern are themselves highly speckled. We study combinations of fields whose components exhibit short- and long-range correlations, and find unusual forms of screening.