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Beam Wander Restrained by Nonlinearity of Femtosecond Laser Filament in Air

The filamentation process under atmospheric turbulence is critical to its remote-sensing application. The effects of turbulence intensity and location on the spatial distribution of femtosecond laser filaments in the air were studied. The experimental results show that the nonlinear effect of the fi...

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Autores principales: Guo, Jiewei, Sun, Lu, Liu, Jinpei, Shang, Binpeng, Tao, Shishi, Zhang, Nan, Lin, Lie, Zhang, Zhi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9269853/
https://www.ncbi.nlm.nih.gov/pubmed/35808489
http://dx.doi.org/10.3390/s22134995
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author Guo, Jiewei
Sun, Lu
Liu, Jinpei
Shang, Binpeng
Tao, Shishi
Zhang, Nan
Lin, Lie
Zhang, Zhi
author_facet Guo, Jiewei
Sun, Lu
Liu, Jinpei
Shang, Binpeng
Tao, Shishi
Zhang, Nan
Lin, Lie
Zhang, Zhi
author_sort Guo, Jiewei
collection PubMed
description The filamentation process under atmospheric turbulence is critical to its remote-sensing application. The effects of turbulence intensity and location on the spatial distribution of femtosecond laser filaments in the air were studied. The experimental results show that the nonlinear effect of the filament can restrain the beam wander. When the turbulence intensity was [Formula: see text] , the mean deviation of the wander of the filament center was only 27% of that of the linear transmitted beam. The change in turbulence location would lead to a change in the standard deviation of the beam centroid drift. Results also show that the filament length would be shortened, and that the filament would end up earlier in a turbulent environment. Since the filamentation-based LIDAR has been highly expected as an evolution multitrace pollutant remote-sensing technique, the study promotes our understanding of how turbulence influences filamentation and advances atmospheric remote sensing by applying a filament.
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spelling pubmed-92698532022-07-09 Beam Wander Restrained by Nonlinearity of Femtosecond Laser Filament in Air Guo, Jiewei Sun, Lu Liu, Jinpei Shang, Binpeng Tao, Shishi Zhang, Nan Lin, Lie Zhang, Zhi Sensors (Basel) Article The filamentation process under atmospheric turbulence is critical to its remote-sensing application. The effects of turbulence intensity and location on the spatial distribution of femtosecond laser filaments in the air were studied. The experimental results show that the nonlinear effect of the filament can restrain the beam wander. When the turbulence intensity was [Formula: see text] , the mean deviation of the wander of the filament center was only 27% of that of the linear transmitted beam. The change in turbulence location would lead to a change in the standard deviation of the beam centroid drift. Results also show that the filament length would be shortened, and that the filament would end up earlier in a turbulent environment. Since the filamentation-based LIDAR has been highly expected as an evolution multitrace pollutant remote-sensing technique, the study promotes our understanding of how turbulence influences filamentation and advances atmospheric remote sensing by applying a filament. MDPI 2022-07-02 /pmc/articles/PMC9269853/ /pubmed/35808489 http://dx.doi.org/10.3390/s22134995 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Guo, Jiewei
Sun, Lu
Liu, Jinpei
Shang, Binpeng
Tao, Shishi
Zhang, Nan
Lin, Lie
Zhang, Zhi
Beam Wander Restrained by Nonlinearity of Femtosecond Laser Filament in Air
title Beam Wander Restrained by Nonlinearity of Femtosecond Laser Filament in Air
title_full Beam Wander Restrained by Nonlinearity of Femtosecond Laser Filament in Air
title_fullStr Beam Wander Restrained by Nonlinearity of Femtosecond Laser Filament in Air
title_full_unstemmed Beam Wander Restrained by Nonlinearity of Femtosecond Laser Filament in Air
title_short Beam Wander Restrained by Nonlinearity of Femtosecond Laser Filament in Air
title_sort beam wander restrained by nonlinearity of femtosecond laser filament in air
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9269853/
https://www.ncbi.nlm.nih.gov/pubmed/35808489
http://dx.doi.org/10.3390/s22134995
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