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Filamentation in low pressure conditions
Filamentation is favorable for many long-range outdoor laser applications, some of which require propagation to or at high altitudes. Understanding how the filamentation process and filament properties are impacted by the low pressure conditions present at high altitudes is essential in designing ef...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9734164/ https://www.ncbi.nlm.nih.gov/pubmed/36494395 http://dx.doi.org/10.1038/s41598-022-19765-6 |
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author | Peña, Jessica Reyes, Danielle Richardson, Martin |
author_facet | Peña, Jessica Reyes, Danielle Richardson, Martin |
author_sort | Peña, Jessica |
collection | PubMed |
description | Filamentation is favorable for many long-range outdoor laser applications, some of which require propagation to or at high altitudes. Understanding how the filamentation process and filament properties are impacted by the low pressure conditions present at high altitudes is essential in designing effective applications. The scaling of filament preconditions with pressure is considered. An increase in critical power and decrease in transition numerical aperture (NA) is predicted to occur with a drop in pressure, indicating that nonlinear pulse propagation and filamentation at high altitudes requires higher energy and a longer assisted focal length than sea level filamentation. A summary of pressure-scaled filament properties is also presented. New simulations demonstrate filamentation at pressures as low as 0.0035 atm (38.5 km altitude) is possible. |
format | Online Article Text |
id | pubmed-9734164 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-97341642022-12-11 Filamentation in low pressure conditions Peña, Jessica Reyes, Danielle Richardson, Martin Sci Rep Article Filamentation is favorable for many long-range outdoor laser applications, some of which require propagation to or at high altitudes. Understanding how the filamentation process and filament properties are impacted by the low pressure conditions present at high altitudes is essential in designing effective applications. The scaling of filament preconditions with pressure is considered. An increase in critical power and decrease in transition numerical aperture (NA) is predicted to occur with a drop in pressure, indicating that nonlinear pulse propagation and filamentation at high altitudes requires higher energy and a longer assisted focal length than sea level filamentation. A summary of pressure-scaled filament properties is also presented. New simulations demonstrate filamentation at pressures as low as 0.0035 atm (38.5 km altitude) is possible. Nature Publishing Group UK 2022-12-09 /pmc/articles/PMC9734164/ /pubmed/36494395 http://dx.doi.org/10.1038/s41598-022-19765-6 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Peña, Jessica Reyes, Danielle Richardson, Martin Filamentation in low pressure conditions |
title | Filamentation in low pressure conditions |
title_full | Filamentation in low pressure conditions |
title_fullStr | Filamentation in low pressure conditions |
title_full_unstemmed | Filamentation in low pressure conditions |
title_short | Filamentation in low pressure conditions |
title_sort | filamentation in low pressure conditions |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9734164/ https://www.ncbi.nlm.nih.gov/pubmed/36494395 http://dx.doi.org/10.1038/s41598-022-19765-6 |
work_keys_str_mv | AT penajessica filamentationinlowpressureconditions AT reyesdanielle filamentationinlowpressureconditions AT richardsonmartin filamentationinlowpressureconditions |