Design of a reconfigurable THz filter based on metamaterial wire resonators with applications on sensor devices

Detalhes bibliográficos
Autor(a) principal: Pavia, J. P.
Data de Publicação: 2020
Outros Autores: Souto, N., Ribeiro, M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10071/20654
Resumo: A study on the design, simulation and characterization of a reconfigurable terahertz (THz) filter, composed of two frequency-selective surfaces (FSSs) with applications on sensor devices in general and highly sensitive stress sensors, is presented in this paper. Using the developed theoretical model, we found out that by careful tuning the wire parameters, it is possible to control the filter sensitivity and also the energy transmission and reflection that passes through the structure. Numerical modelling of both the mechanical and electromagnetic components (using the elasticity equation and Maxwell’s equations, respectively) has been undertaken for two types of the device assemblies based on different thermoplastic polymers transparent to the THz radiation, namely: high-density polyethylene (HDPE) and polytetrafluoroethylene (PTFE), operating in a THz window from 395 to 455 GHz. The numerical results allowed us to characterize the relation between the reflectance/transmittance and the amount of force required to obtain a specific frequency shift along that window. It was found that the device assembled with HDPE presents a more linear response and it is able to pass from a full transparency to almost full opacity using only its linear operating zone. Due to its characteristics, this THz filter might be an interesting solution not only for THz sensors based on reconfigurable filters but also for optical modulators for the THz domain.
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spelling Design of a reconfigurable THz filter based on metamaterial wire resonators with applications on sensor devicesMetamaterialsFrequency-selective surfaces (FSSs)Stress sensorsTerahertz (THz)A study on the design, simulation and characterization of a reconfigurable terahertz (THz) filter, composed of two frequency-selective surfaces (FSSs) with applications on sensor devices in general and highly sensitive stress sensors, is presented in this paper. Using the developed theoretical model, we found out that by careful tuning the wire parameters, it is possible to control the filter sensitivity and also the energy transmission and reflection that passes through the structure. Numerical modelling of both the mechanical and electromagnetic components (using the elasticity equation and Maxwell’s equations, respectively) has been undertaken for two types of the device assemblies based on different thermoplastic polymers transparent to the THz radiation, namely: high-density polyethylene (HDPE) and polytetrafluoroethylene (PTFE), operating in a THz window from 395 to 455 GHz. The numerical results allowed us to characterize the relation between the reflectance/transmittance and the amount of force required to obtain a specific frequency shift along that window. It was found that the device assembled with HDPE presents a more linear response and it is able to pass from a full transparency to almost full opacity using only its linear operating zone. Due to its characteristics, this THz filter might be an interesting solution not only for THz sensors based on reconfigurable filters but also for optical modulators for the THz domain.MDPI2020-08-04T13:15:13Z2020-01-01T00:00:00Z20202020-08-04T14:19:21Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10071/20654eng2304-673210.3390/photonics7030048Pavia, J. P.Souto, N.Ribeiro, M.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-09T17:58:26Zoai:repositorio.iscte-iul.pt:10071/20654Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:30:25.311601Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Design of a reconfigurable THz filter based on metamaterial wire resonators with applications on sensor devices
title Design of a reconfigurable THz filter based on metamaterial wire resonators with applications on sensor devices
spellingShingle Design of a reconfigurable THz filter based on metamaterial wire resonators with applications on sensor devices
Pavia, J. P.
Metamaterials
Frequency-selective surfaces (FSSs)
Stress sensors
Terahertz (THz)
title_short Design of a reconfigurable THz filter based on metamaterial wire resonators with applications on sensor devices
title_full Design of a reconfigurable THz filter based on metamaterial wire resonators with applications on sensor devices
title_fullStr Design of a reconfigurable THz filter based on metamaterial wire resonators with applications on sensor devices
title_full_unstemmed Design of a reconfigurable THz filter based on metamaterial wire resonators with applications on sensor devices
title_sort Design of a reconfigurable THz filter based on metamaterial wire resonators with applications on sensor devices
author Pavia, J. P.
author_facet Pavia, J. P.
Souto, N.
Ribeiro, M.
author_role author
author2 Souto, N.
Ribeiro, M.
author2_role author
author
dc.contributor.author.fl_str_mv Pavia, J. P.
Souto, N.
Ribeiro, M.
dc.subject.por.fl_str_mv Metamaterials
Frequency-selective surfaces (FSSs)
Stress sensors
Terahertz (THz)
topic Metamaterials
Frequency-selective surfaces (FSSs)
Stress sensors
Terahertz (THz)
description A study on the design, simulation and characterization of a reconfigurable terahertz (THz) filter, composed of two frequency-selective surfaces (FSSs) with applications on sensor devices in general and highly sensitive stress sensors, is presented in this paper. Using the developed theoretical model, we found out that by careful tuning the wire parameters, it is possible to control the filter sensitivity and also the energy transmission and reflection that passes through the structure. Numerical modelling of both the mechanical and electromagnetic components (using the elasticity equation and Maxwell’s equations, respectively) has been undertaken for two types of the device assemblies based on different thermoplastic polymers transparent to the THz radiation, namely: high-density polyethylene (HDPE) and polytetrafluoroethylene (PTFE), operating in a THz window from 395 to 455 GHz. The numerical results allowed us to characterize the relation between the reflectance/transmittance and the amount of force required to obtain a specific frequency shift along that window. It was found that the device assembled with HDPE presents a more linear response and it is able to pass from a full transparency to almost full opacity using only its linear operating zone. Due to its characteristics, this THz filter might be an interesting solution not only for THz sensors based on reconfigurable filters but also for optical modulators for the THz domain.
publishDate 2020
dc.date.none.fl_str_mv 2020-08-04T13:15:13Z
2020-01-01T00:00:00Z
2020
2020-08-04T14:19:21Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10071/20654
url http://hdl.handle.net/10071/20654
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2304-6732
10.3390/photonics7030048
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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