Image-plane scintillation of complex targets in diverse heterogenous turbulent regimes

Darío G. Pérez, Marco Sepúlveda, Leandro Nuñez

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We have previously reported [D. G. Perez et al., Imaging Appl. Opt. 2019 (pcAOP), invited talk] that image-plane scintillation index can provide a universal law to extract Cn2—independent of the target shape and light source. Also, we observed σI2 > 1 on the image plane occurs at any turbulence strength; particularly, as we move from weak to strong optical turbulence the number of pixels with scintillation greater than one increases in the neighborhood of high-contrast regions (edges). As the number of pixels with large scintillation values is observed with higher frequency in targets illuminated with incoherent light, whether wandering plays a mayor influence or not in image-plane scintillation regardless of the turbulent regime is still unknown. In this communication, we have devised a new experiment capable of differentiating the contributions of amplitude and phase to the pixel scintillation. Moreover, structured targets were introduced to distinguish anisotropic regimes, a property that was largely undetected in our original setup.

Original languageEnglish
Title of host publicationPropagation Through and Characterization of Atmospheric and Oceanic Phenomena, pcAOP 2022
PublisherOptica Publishing Group (formerly OSA)
ISBN (Electronic)9781557528209
StatePublished - 2022
Externally publishedYes
EventPropagation Through and Characterization of Atmospheric and Oceanic Phenomena, pcAOP 2022 - Vancouver, Canada
Duration: 11 Jul 202215 Jul 2022

Publication series

NameOptics InfoBase Conference Papers

Conference

ConferencePropagation Through and Characterization of Atmospheric and Oceanic Phenomena, pcAOP 2022
Country/TerritoryCanada
CityVancouver
Period11/07/2215/07/22

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