Degradation of light carrying orbital angular momentum by ballistic scattering

Viola, S., Chen, Z., Yao, A. M., Valyrakis, M. , Kelly, A. E. , McKee, D. and Lavery, M. P.J. (2020) Degradation of light carrying orbital angular momentum by ballistic scattering. Physical Review Research, 2, 033093. (doi: 10.1103/PhysRevResearch.2.033093)

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Abstract

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.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Lavery, Professor Martin and Chen, Dr Zhaozhong and Kelly, Professor Anthony and Valyrakis, Dr Manousos and Viola, Mr Shaun and Yao, Dr Alison
Authors: Viola, S., Chen, Z., Yao, A. M., Valyrakis, M., Kelly, A. E., McKee, D., and Lavery, M. P.J.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
College of Science and Engineering > School of Engineering > Infrastructure and Environment
College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physical Review Research
Publisher:American Physical Society
ISSN:2643-1564
ISSN (Online):2643-1564
Copyright Holders:Copyright © 2020 the American Physical Society
First Published:First published in Physical Review Research 2:033093
Publisher Policy:Reproduced under a Creative Commons license

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
173260High Dimensional Free-space Building-to-Building Link for Last-Mile CommunicationsMartin LaveryEngineering and Physical Sciences Research Council (EPSRC)EP/N032853/1ENG - Electronics & Nanoscale Engineering
304171SuperpixelMartin LaveryEuropean Commission (EC)829116ENG - Electronics & Nanoscale Engineering