Degradation of light carrying orbital angular momentum by ballistic scattering

Structured light can enhance the functionality of optical communication and sensing systems. Dense scattering environments such as those experienced in coastal water and foggy conditions result in degradation of structured optical fields. We present findings that characterize the degradation of the...

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Main Authors: Shaun Viola, Zhaozhong Chen, Alison M. Yao, Manousos Valyrakis, Anthony E. Kelly, David McKee, Martin P. J. Lavery
Format: Article
Language:English
Published: American Physical Society 2020-07-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.2.033093
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author Shaun Viola
Zhaozhong Chen
Alison M. Yao
Manousos Valyrakis
Anthony E. Kelly
David McKee
Martin P. J. Lavery
author_facet Shaun Viola
Zhaozhong Chen
Alison M. Yao
Manousos Valyrakis
Anthony E. Kelly
David McKee
Martin P. J. Lavery
author_sort Shaun Viola
collection DOAJ
description Structured light can enhance the functionality of optical communication and sensing systems. Dense scattering environments such as those experienced in coastal water and foggy conditions result in degradation of structured optical fields. We present findings that characterize the degradation of the phase structure of ballistic scattered light carrying orbital angular momentum (OAM) propagated through a dense scattering medium over distances of up to 20 m. We present a numerical channel modeling approach that can predict the scattering behavior at extended distances, which indicates that there is a strong mode-dependent variance in cross talk from the interaction of beams that carry OAM with randomly displaced scattering particles. These results present an effect that could allow the use of OAM modes to enhance particulate size sensors and could potentially lead to the development of novel tools for monitoring particles in underwater or free-space optical channels.
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spelling doaj.art-9184de346a1845d9b51b309670eb426c2024-04-12T16:57:19ZengAmerican Physical SocietyPhysical Review Research2643-15642020-07-012303309310.1103/PhysRevResearch.2.033093Degradation of light carrying orbital angular momentum by ballistic scatteringShaun ViolaZhaozhong ChenAlison M. YaoManousos ValyrakisAnthony E. KellyDavid McKeeMartin P. J. LaveryStructured light can enhance the functionality of optical communication and sensing systems. Dense scattering environments such as those experienced in coastal water and foggy conditions result in degradation of structured optical fields. We present findings that characterize the degradation of the phase structure of ballistic scattered light carrying orbital angular momentum (OAM) propagated through a dense scattering medium over distances of up to 20 m. We present a numerical channel modeling approach that can predict the scattering behavior at extended distances, which indicates that there is a strong mode-dependent variance in cross talk from the interaction of beams that carry OAM with randomly displaced scattering particles. These results present an effect that could allow the use of OAM modes to enhance particulate size sensors and could potentially lead to the development of novel tools for monitoring particles in underwater or free-space optical channels.http://doi.org/10.1103/PhysRevResearch.2.033093
spellingShingle Shaun Viola
Zhaozhong Chen
Alison M. Yao
Manousos Valyrakis
Anthony E. Kelly
David McKee
Martin P. J. Lavery
Degradation of light carrying orbital angular momentum by ballistic scattering
Physical Review Research
title Degradation of light carrying orbital angular momentum by ballistic scattering
title_full Degradation of light carrying orbital angular momentum by ballistic scattering
title_fullStr Degradation of light carrying orbital angular momentum by ballistic scattering
title_full_unstemmed Degradation of light carrying orbital angular momentum by ballistic scattering
title_short Degradation of light carrying orbital angular momentum by ballistic scattering
title_sort degradation of light carrying orbital angular momentum by ballistic scattering
url http://doi.org/10.1103/PhysRevResearch.2.033093
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