Mapping active strain using terahertz metamaterial laminates

The ability to image strain fields in composite materials is an indispensable necessity for structural health monitoring. Embedded electromagnetic metamaterials sensitive to applied stresses and operating in the terahertz regime have been proposed as a solution, but they have traditionally relied on...

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Autores principales:	Omar Khatib, Talmage Tyler, Willie J. Padilla, Nan M. Jokerst, Henry O. Everitt
Formato:	article
Lenguaje:	EN
Publicado:	AIP Publishing LLC 2021
Materias:	Applied optics. Photonics TA1501-1820
Acceso en línea:	https://doaj.org/article/6f39b819a5534d45a981d87df372d2e4
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id	oai:doaj.org-article:6f39b819a5534d45a981d87df372d2e4
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spelling	oai:doaj.org-article:6f39b819a5534d45a981d87df372d2e42021-12-01T18:51:31ZMapping active strain using terahertz metamaterial laminates2378-096710.1063/5.0069723https://doaj.org/article/6f39b819a5534d45a981d87df372d2e42021-11-01T00:00:00Zhttp://dx.doi.org/10.1063/5.0069723https://doaj.org/toc/2378-0967The ability to image strain fields in composite materials is an indispensable necessity for structural health monitoring. Embedded electromagnetic metamaterials sensitive to applied stresses and operating in the terahertz regime have been proposed as a solution, but they have traditionally relied on slight amplitude or frequency shifts of their terahertz spectral resonance relative to a presumably unchanging, unstrained reference spectral map. Here, we demonstrate a facile, reference-free imaging technique to map the currently active local strain throughout a composite structure using a reversible passive terahertz metamaterial laminate with a tailored polarimetric signature. Only two orthogonal polarizations and a few frequencies are required to measure this strong terahertz response, from which the local strain environment may be rapidly and quantitatively mapped over large areas.Omar KhatibTalmage TylerWillie J. PadillaNan M. JokerstHenry O. EverittAIP Publishing LLCarticleApplied optics. PhotonicsTA1501-1820ENAPL Photonics, Vol 6, Iss 11, Pp 116105-116105-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Applied optics. Photonics TA1501-1820
spellingShingle	Applied optics. Photonics TA1501-1820 Omar Khatib Talmage Tyler Willie J. Padilla Nan M. Jokerst Henry O. Everitt Mapping active strain using terahertz metamaterial laminates
description	The ability to image strain fields in composite materials is an indispensable necessity for structural health monitoring. Embedded electromagnetic metamaterials sensitive to applied stresses and operating in the terahertz regime have been proposed as a solution, but they have traditionally relied on slight amplitude or frequency shifts of their terahertz spectral resonance relative to a presumably unchanging, unstrained reference spectral map. Here, we demonstrate a facile, reference-free imaging technique to map the currently active local strain throughout a composite structure using a reversible passive terahertz metamaterial laminate with a tailored polarimetric signature. Only two orthogonal polarizations and a few frequencies are required to measure this strong terahertz response, from which the local strain environment may be rapidly and quantitatively mapped over large areas.
format	article
author	Omar Khatib Talmage Tyler Willie J. Padilla Nan M. Jokerst Henry O. Everitt
author_facet	Omar Khatib Talmage Tyler Willie J. Padilla Nan M. Jokerst Henry O. Everitt
author_sort	Omar Khatib
title	Mapping active strain using terahertz metamaterial laminates
title_short	Mapping active strain using terahertz metamaterial laminates
title_full	Mapping active strain using terahertz metamaterial laminates
title_fullStr	Mapping active strain using terahertz metamaterial laminates
title_full_unstemmed	Mapping active strain using terahertz metamaterial laminates
title_sort	mapping active strain using terahertz metamaterial laminates
publisher	AIP Publishing LLC
publishDate	2021
url	https://doaj.org/article/6f39b819a5534d45a981d87df372d2e4
work_keys_str_mv	AT omarkhatib mappingactivestrainusingterahertzmetamateriallaminates AT talmagetyler mappingactivestrainusingterahertzmetamateriallaminates AT williejpadilla mappingactivestrainusingterahertzmetamateriallaminates AT nanmjokerst mappingactivestrainusingterahertzmetamateriallaminates AT henryoeveritt mappingactivestrainusingterahertzmetamateriallaminates
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Mapping active strain using terahertz metamaterial laminates

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