Terahertz response of patterned epitaxial graphene

Detalhes bibliográficos
Autor(a) principal: Sorger, Christian
Data de Publicação: 2015
Outros Autores: Preu, Sascha, Schmidt, Johannes, Winnerl, Stephan, Bludov, Yuliy V., Peres, N. M. R., Vasilevskiy, Mikhail, Weber, Heiko B.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/39092
Resumo: We study the interaction between polarized terahertz (THz) radiation and micro-structured large-area graphene in transmission geometry. In order to efficiently couple the radiation into the two-dimensional material, a lateral periodic patterning of a closed graphene sheet by intercalation doping into stripes is chosen. We observe unequal transmittance of the radiation polarized parallel and perpendicular to the stripes. The relative contrast, partly enhanced by Fabry-Perot oscillations reaches 20 %. The effect even increases up to 50 % when removing graphene stripes in analogy to a wire grid polarizer. The polarization dependence is analyzed in a large frequency range from < 80 GHz to 3 THz, including the plasmon-polariton resonance. The results are in excellent agreement with theoretical calculations based on the electronic energy spectrum of graphene and the electrodynamics of the patterned structure
id RCAP_f8a69ec07d8ba273b9bd15a8a601003d
oai_identifier_str oai:repositorium.sdum.uminho.pt:1822/39092
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling Terahertz response of patterned epitaxial graphenePlasmonicsGrapheneTHzGratingplasmongraphemeCiências Naturais::Ciências FísicasScience & TechnologyWe study the interaction between polarized terahertz (THz) radiation and micro-structured large-area graphene in transmission geometry. In order to efficiently couple the radiation into the two-dimensional material, a lateral periodic patterning of a closed graphene sheet by intercalation doping into stripes is chosen. We observe unequal transmittance of the radiation polarized parallel and perpendicular to the stripes. The relative contrast, partly enhanced by Fabry-Perot oscillations reaches 20 %. The effect even increases up to 50 % when removing graphene stripes in analogy to a wire grid polarizer. The polarization dependence is analyzed in a large frequency range from < 80 GHz to 3 THz, including the plasmon-polariton resonance. The results are in excellent agreement with theoretical calculations based on the electronic energy spectrum of graphene and the electrodynamics of the patterned structureThe authors thank J. Jobst for fruitful discussions. The research was performed in the framework of the Sonderforschungsbereich 953 "Synthetic carbon allotropes", funded by Deutsche Forschungsgemeinschaft. We acknowledge support from the EC under Graphene Flagship (contract no. CNECT-ICT-604391).IOP PublishingUniversidade do MinhoSorger, ChristianPreu, SaschaSchmidt, JohannesWinnerl, StephanBludov, Yuliy V.Peres, N. M. R.Vasilevskiy, MikhailWeber, Heiko B.2015-02-132015-02-13T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/39092engSorger, C., Preu, S., Schmidt, J., Winnerl, S., Bludov, Y. V., Peres, N. M. R., . . . Weber, H. B. (2015). Terahertz response of patterned epitaxial graphene. New Journal of Physics, 17. doi: 10.1088/1367-2630/17/5/0530451367-263010.1088/1367-2630/17/5/053045http://iopscience.iop.org/article/10.1088/1367-2630/17/5/053045/metainfo: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:RCAAP2023-07-21T12:31:00Zoai:repositorium.sdum.uminho.pt:1822/39092Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:26:14.698445Repositório 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 Terahertz response of patterned epitaxial graphene
title Terahertz response of patterned epitaxial graphene
spellingShingle Terahertz response of patterned epitaxial graphene
Sorger, Christian
Plasmonics
Graphene
THz
Grating
plasmon
grapheme
Ciências Naturais::Ciências Físicas
Science & Technology
title_short Terahertz response of patterned epitaxial graphene
title_full Terahertz response of patterned epitaxial graphene
title_fullStr Terahertz response of patterned epitaxial graphene
title_full_unstemmed Terahertz response of patterned epitaxial graphene
title_sort Terahertz response of patterned epitaxial graphene
author Sorger, Christian
author_facet Sorger, Christian
Preu, Sascha
Schmidt, Johannes
Winnerl, Stephan
Bludov, Yuliy V.
Peres, N. M. R.
Vasilevskiy, Mikhail
Weber, Heiko B.
author_role author
author2 Preu, Sascha
Schmidt, Johannes
Winnerl, Stephan
Bludov, Yuliy V.
Peres, N. M. R.
Vasilevskiy, Mikhail
Weber, Heiko B.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Sorger, Christian
Preu, Sascha
Schmidt, Johannes
Winnerl, Stephan
Bludov, Yuliy V.
Peres, N. M. R.
Vasilevskiy, Mikhail
Weber, Heiko B.
dc.subject.por.fl_str_mv Plasmonics
Graphene
THz
Grating
plasmon
grapheme
Ciências Naturais::Ciências Físicas
Science & Technology
topic Plasmonics
Graphene
THz
Grating
plasmon
grapheme
Ciências Naturais::Ciências Físicas
Science & Technology
description We study the interaction between polarized terahertz (THz) radiation and micro-structured large-area graphene in transmission geometry. In order to efficiently couple the radiation into the two-dimensional material, a lateral periodic patterning of a closed graphene sheet by intercalation doping into stripes is chosen. We observe unequal transmittance of the radiation polarized parallel and perpendicular to the stripes. The relative contrast, partly enhanced by Fabry-Perot oscillations reaches 20 %. The effect even increases up to 50 % when removing graphene stripes in analogy to a wire grid polarizer. The polarization dependence is analyzed in a large frequency range from < 80 GHz to 3 THz, including the plasmon-polariton resonance. The results are in excellent agreement with theoretical calculations based on the electronic energy spectrum of graphene and the electrodynamics of the patterned structure
publishDate 2015
dc.date.none.fl_str_mv 2015-02-13
2015-02-13T00:00:00Z
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/1822/39092
url http://hdl.handle.net/1822/39092
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Sorger, C., Preu, S., Schmidt, J., Winnerl, S., Bludov, Y. V., Peres, N. M. R., . . . Weber, H. B. (2015). Terahertz response of patterned epitaxial graphene. New Journal of Physics, 17. doi: 10.1088/1367-2630/17/5/053045
1367-2630
10.1088/1367-2630/17/5/053045
http://iopscience.iop.org/article/10.1088/1367-2630/17/5/053045/meta
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 IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
_version_ 1799132750103445504

Registros relacionados