Spatial statistics of superposition of two uncorrelated speckle patterns with polarization diversity

A detailed theoretical and experimental study on the effect of the superposition of uncorrelated speckle patterns with polarization diversity on the spatial statistics of the superposed speckle pattern is presented. It is shown that depending on the mutual orientation of the polarization vectors of...

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Autor principal:	Abhijit Roy
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Speckle superposition Uncorrelated speckle patterns Spatial coherence Speckle Interferometry Probability density function Optics. Light QC350-467
Acceso en línea:	https://doaj.org/article/3b8b34759f5e4adb955c9332b5f7f260
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id	oai:doaj.org-article:3b8b34759f5e4adb955c9332b5f7f260
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spelling	oai:doaj.org-article:3b8b34759f5e4adb955c9332b5f7f2602021-11-14T04:36:05ZSpatial statistics of superposition of two uncorrelated speckle patterns with polarization diversity2666-950110.1016/j.rio.2021.100187https://doaj.org/article/3b8b34759f5e4adb955c9332b5f7f2602021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2666950121001322https://doaj.org/toc/2666-9501A detailed theoretical and experimental study on the effect of the superposition of uncorrelated speckle patterns with polarization diversity on the spatial statistics of the superposed speckle pattern is presented. It is shown that depending on the mutual orientation of the polarization vectors of the constituent speckle patterns, the maximum degree of coherence (DoC) and degree of polarization (DoP) of the superposed speckle pattern changes between a maximum and minimum value in a sinusoidal fashion. Moreover, the average intensity ratio of the constituent speckle patterns is also found to be affecting these variations. A study of the change in the visibility of the two-point intensity correlation function also reveals a sinusoidal nature of the variation and its dependence on the ratio of the average intensity, which are found to be similar to the variations of the maximum DoC and DoP. A detailed study on the changes in the normalized probability density function is also performed for better understanding of the effect on the spatial statistics.Abhijit RoyElsevierarticleSpeckle superpositionUncorrelated speckle patternsSpatial coherenceSpeckleInterferometryProbability density functionOptics. LightQC350-467ENResults in Optics, Vol 5, Iss , Pp 100187- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Speckle superposition Uncorrelated speckle patterns Spatial coherence Speckle Interferometry Probability density function Optics. Light QC350-467
spellingShingle	Speckle superposition Uncorrelated speckle patterns Spatial coherence Speckle Interferometry Probability density function Optics. Light QC350-467 Abhijit Roy Spatial statistics of superposition of two uncorrelated speckle patterns with polarization diversity
description	A detailed theoretical and experimental study on the effect of the superposition of uncorrelated speckle patterns with polarization diversity on the spatial statistics of the superposed speckle pattern is presented. It is shown that depending on the mutual orientation of the polarization vectors of the constituent speckle patterns, the maximum degree of coherence (DoC) and degree of polarization (DoP) of the superposed speckle pattern changes between a maximum and minimum value in a sinusoidal fashion. Moreover, the average intensity ratio of the constituent speckle patterns is also found to be affecting these variations. A study of the change in the visibility of the two-point intensity correlation function also reveals a sinusoidal nature of the variation and its dependence on the ratio of the average intensity, which are found to be similar to the variations of the maximum DoC and DoP. A detailed study on the changes in the normalized probability density function is also performed for better understanding of the effect on the spatial statistics.
format	article
author	Abhijit Roy
author_facet	Abhijit Roy
author_sort	Abhijit Roy
title	Spatial statistics of superposition of two uncorrelated speckle patterns with polarization diversity
title_short	Spatial statistics of superposition of two uncorrelated speckle patterns with polarization diversity
title_full	Spatial statistics of superposition of two uncorrelated speckle patterns with polarization diversity
title_fullStr	Spatial statistics of superposition of two uncorrelated speckle patterns with polarization diversity
title_full_unstemmed	Spatial statistics of superposition of two uncorrelated speckle patterns with polarization diversity
title_sort	spatial statistics of superposition of two uncorrelated speckle patterns with polarization diversity
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/3b8b34759f5e4adb955c9332b5f7f260
work_keys_str_mv	AT abhijitroy spatialstatisticsofsuperpositionoftwouncorrelatedspecklepatternswithpolarizationdiversity
_version_	1718429890934472704

Spatial statistics of superposition of two uncorrelated speckle patterns with polarization diversity

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