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Increasing the stability margins using multi-pattern metasails and multi-modal laser beams

Laser-driven metasails can enable reaching velocities far beyond the chemically propelled spacecrafts, which accounts for precise engineering of the acceleration and the stability degree of the lightsail across the Doppler-broadened band. All-dielectric metasurfaces have shown great promise toward t...

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Autores principales: Taghavi, Mohammadrasoul, Mosallaei, Hossein
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9681836/
https://www.ncbi.nlm.nih.gov/pubmed/36414750
http://dx.doi.org/10.1038/s41598-022-24681-w
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author Taghavi, Mohammadrasoul
Mosallaei, Hossein
author_facet Taghavi, Mohammadrasoul
Mosallaei, Hossein
author_sort Taghavi, Mohammadrasoul
collection PubMed
description Laser-driven metasails can enable reaching velocities far beyond the chemically propelled spacecrafts, which accounts for precise engineering of the acceleration and the stability degree of the lightsail across the Doppler-broadened band. All-dielectric metasurfaces have shown great promise toward the realization of low-weight photonic platforms suitable for integrating multiple functionalities. The most paramount factor in the stability analysis of lightsail is the coupling between displacement and rotation, which mainly determines the durability of the nanocraft against displacement and rotation offsets. In this work, the marginal stability conditions of laser-propelled lightsails have been extended by replacing the reflective elements near the edges portions of the sail with broad-band transmissive elements and applying a multi-objective genetic algorithm (GA) optimization to the proposed configuration. The presented design not only remarkably suppresses the amplitude of the oscillatory motion but also can decrease the center of the mass requirement of the lightsail while maintaining an acceptable acceleration time. Next, a configuration where the payload is at the non-illuminating side of the dual-portion sail is proposed to protect the payload from the intense laser beam. In this case, a spherical phase profile is imprinted across the reflective elements while it is being propelled by a multi-modal beam.
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spelling pubmed-96818362022-11-24 Increasing the stability margins using multi-pattern metasails and multi-modal laser beams Taghavi, Mohammadrasoul Mosallaei, Hossein Sci Rep Article Laser-driven metasails can enable reaching velocities far beyond the chemically propelled spacecrafts, which accounts for precise engineering of the acceleration and the stability degree of the lightsail across the Doppler-broadened band. All-dielectric metasurfaces have shown great promise toward the realization of low-weight photonic platforms suitable for integrating multiple functionalities. The most paramount factor in the stability analysis of lightsail is the coupling between displacement and rotation, which mainly determines the durability of the nanocraft against displacement and rotation offsets. In this work, the marginal stability conditions of laser-propelled lightsails have been extended by replacing the reflective elements near the edges portions of the sail with broad-band transmissive elements and applying a multi-objective genetic algorithm (GA) optimization to the proposed configuration. The presented design not only remarkably suppresses the amplitude of the oscillatory motion but also can decrease the center of the mass requirement of the lightsail while maintaining an acceptable acceleration time. Next, a configuration where the payload is at the non-illuminating side of the dual-portion sail is proposed to protect the payload from the intense laser beam. In this case, a spherical phase profile is imprinted across the reflective elements while it is being propelled by a multi-modal beam. Nature Publishing Group UK 2022-11-21 /pmc/articles/PMC9681836/ /pubmed/36414750 http://dx.doi.org/10.1038/s41598-022-24681-w Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis 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
Taghavi, Mohammadrasoul
Mosallaei, Hossein
Increasing the stability margins using multi-pattern metasails and multi-modal laser beams
title Increasing the stability margins using multi-pattern metasails and multi-modal laser beams
title_full Increasing the stability margins using multi-pattern metasails and multi-modal laser beams
title_fullStr Increasing the stability margins using multi-pattern metasails and multi-modal laser beams
title_full_unstemmed Increasing the stability margins using multi-pattern metasails and multi-modal laser beams
title_short Increasing the stability margins using multi-pattern metasails and multi-modal laser beams
title_sort increasing the stability margins using multi-pattern metasails and multi-modal laser beams
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9681836/
https://www.ncbi.nlm.nih.gov/pubmed/36414750
http://dx.doi.org/10.1038/s41598-022-24681-w
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