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Optical Microscopy Observations and Construction of Dupin Cyclides at the Isotropic/Smectic A Phase Transition
In this work, we are interested in the nucleation of bâtonnets at the Isotropic/Smectic A phase transition of 10CB liquid crystal. Very often, these bâtonnets are decorated with a large number of focal conics. We present here an example of a bâtonnet obtained by optical crossed polarized microscopy...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8398811/ https://www.ncbi.nlm.nih.gov/pubmed/34443061 http://dx.doi.org/10.3390/ma14164539 |
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author | Halaby Macary, Mikhael Damême, Gauthier Gibek, Antoine Dubuffet, Valentin Dupuy, Benoît Picart, Justin Dimeni, Roll Freddy Meyer, Claire |
author_facet | Halaby Macary, Mikhael Damême, Gauthier Gibek, Antoine Dubuffet, Valentin Dupuy, Benoît Picart, Justin Dimeni, Roll Freddy Meyer, Claire |
author_sort | Halaby Macary, Mikhael |
collection | PubMed |
description | In this work, we are interested in the nucleation of bâtonnets at the Isotropic/Smectic A phase transition of 10CB liquid crystal. Very often, these bâtonnets are decorated with a large number of focal conics. We present here an example of a bâtonnet obtained by optical crossed polarized microscopy in a frequently observed particular area of the sample. This bâtonnet presents bulges and one of them consists of a tessellation of ellipses. These ellipses are two by two tangent, one to each other, and their confocal hyperbolas merge at the apex of the bâtonnet. We propose a numerical simulation with Python software to reproduce this tiling of ellipses as well as the shape of the smectic layers taking the well-known shape of Dupin cyclides within this particular bâtonnet area. |
format | Online Article Text |
id | pubmed-8398811 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-83988112021-08-29 Optical Microscopy Observations and Construction of Dupin Cyclides at the Isotropic/Smectic A Phase Transition Halaby Macary, Mikhael Damême, Gauthier Gibek, Antoine Dubuffet, Valentin Dupuy, Benoît Picart, Justin Dimeni, Roll Freddy Meyer, Claire Materials (Basel) Article In this work, we are interested in the nucleation of bâtonnets at the Isotropic/Smectic A phase transition of 10CB liquid crystal. Very often, these bâtonnets are decorated with a large number of focal conics. We present here an example of a bâtonnet obtained by optical crossed polarized microscopy in a frequently observed particular area of the sample. This bâtonnet presents bulges and one of them consists of a tessellation of ellipses. These ellipses are two by two tangent, one to each other, and their confocal hyperbolas merge at the apex of the bâtonnet. We propose a numerical simulation with Python software to reproduce this tiling of ellipses as well as the shape of the smectic layers taking the well-known shape of Dupin cyclides within this particular bâtonnet area. MDPI 2021-08-12 /pmc/articles/PMC8398811/ /pubmed/34443061 http://dx.doi.org/10.3390/ma14164539 Text en © 2021 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 Halaby Macary, Mikhael Damême, Gauthier Gibek, Antoine Dubuffet, Valentin Dupuy, Benoît Picart, Justin Dimeni, Roll Freddy Meyer, Claire Optical Microscopy Observations and Construction of Dupin Cyclides at the Isotropic/Smectic A Phase Transition |
title | Optical Microscopy Observations and Construction of Dupin Cyclides at the Isotropic/Smectic A Phase Transition |
title_full | Optical Microscopy Observations and Construction of Dupin Cyclides at the Isotropic/Smectic A Phase Transition |
title_fullStr | Optical Microscopy Observations and Construction of Dupin Cyclides at the Isotropic/Smectic A Phase Transition |
title_full_unstemmed | Optical Microscopy Observations and Construction of Dupin Cyclides at the Isotropic/Smectic A Phase Transition |
title_short | Optical Microscopy Observations and Construction of Dupin Cyclides at the Isotropic/Smectic A Phase Transition |
title_sort | optical microscopy observations and construction of dupin cyclides at the isotropic/smectic a phase transition |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8398811/ https://www.ncbi.nlm.nih.gov/pubmed/34443061 http://dx.doi.org/10.3390/ma14164539 |
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