Bragg Mirrors for Thermal Waves

We present a numerical calculation of the heat transport in a Bragg mirror configuration made of materials that do not obey Fourier’s law of heat conduction. The Bragg mirror is made of materials that are described by the Cattaneo-Vernotte equation. By analyzing the Cattaneo-Vernotte equation’s solu...

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Autores principales:	Angela Camacho de la Rosa, David Becerril, María Guadalupe Gómez-Farfán, Raúl Esquivel-Sirvent
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	Cattaneo-Vernotte waves Bragg Technology T
Acceso en línea:	https://doaj.org/article/06a3f2da270d4ce8a5b3f1f85e4e11ff
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id	oai:doaj.org-article:06a3f2da270d4ce8a5b3f1f85e4e11ff
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spelling	oai:doaj.org-article:06a3f2da270d4ce8a5b3f1f85e4e11ff2021-11-25T17:25:39ZBragg Mirrors for Thermal Waves10.3390/en142274521996-1073https://doaj.org/article/06a3f2da270d4ce8a5b3f1f85e4e11ff2021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/22/7452https://doaj.org/toc/1996-1073We present a numerical calculation of the heat transport in a Bragg mirror configuration made of materials that do not obey Fourier’s law of heat conduction. The Bragg mirror is made of materials that are described by the Cattaneo-Vernotte equation. By analyzing the Cattaneo-Vernotte equation’s solutions, we define the thermal wave surface impedance to design highly reflective thermal Bragg mirrors. Even for mirrors with a few layers, very high reflectance is achieved (>90%). The Bragg mirror configuration is also a system that makes evident the wave-like nature of the solution of the Cattaneo-Vernotte equation by showing frequency pass-bands that are absent if the materials obey the usual Fourier’s law.Angela Camacho de la RosaDavid BecerrilMaría Guadalupe Gómez-FarfánRaúl Esquivel-SirventMDPI AGarticleCattaneo-VernottewavesBraggTechnologyTENEnergies, Vol 14, Iss 7452, p 7452 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Cattaneo-Vernotte waves Bragg Technology T
spellingShingle	Cattaneo-Vernotte waves Bragg Technology T Angela Camacho de la Rosa David Becerril María Guadalupe Gómez-Farfán Raúl Esquivel-Sirvent Bragg Mirrors for Thermal Waves
description	We present a numerical calculation of the heat transport in a Bragg mirror configuration made of materials that do not obey Fourier’s law of heat conduction. The Bragg mirror is made of materials that are described by the Cattaneo-Vernotte equation. By analyzing the Cattaneo-Vernotte equation’s solutions, we define the thermal wave surface impedance to design highly reflective thermal Bragg mirrors. Even for mirrors with a few layers, very high reflectance is achieved (>90%). The Bragg mirror configuration is also a system that makes evident the wave-like nature of the solution of the Cattaneo-Vernotte equation by showing frequency pass-bands that are absent if the materials obey the usual Fourier’s law.
format	article
author	Angela Camacho de la Rosa David Becerril María Guadalupe Gómez-Farfán Raúl Esquivel-Sirvent
author_facet	Angela Camacho de la Rosa David Becerril María Guadalupe Gómez-Farfán Raúl Esquivel-Sirvent
author_sort	Angela Camacho de la Rosa
title	Bragg Mirrors for Thermal Waves
title_short	Bragg Mirrors for Thermal Waves
title_full	Bragg Mirrors for Thermal Waves
title_fullStr	Bragg Mirrors for Thermal Waves
title_full_unstemmed	Bragg Mirrors for Thermal Waves
title_sort	bragg mirrors for thermal waves
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/06a3f2da270d4ce8a5b3f1f85e4e11ff
work_keys_str_mv	AT angelacamachodelarosa braggmirrorsforthermalwaves AT davidbecerril braggmirrorsforthermalwaves AT mariaguadalupegomezfarfan braggmirrorsforthermalwaves AT raulesquivelsirvent braggmirrorsforthermalwaves
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Bragg Mirrors for Thermal Waves

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