1. Repositório Institucional da UFMG
  2. Publicações Científicas e Culturais
  3. Artigo de Evento
Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/54111
Full metadata record
DC FieldValueLanguage
dc.creatorIngrid David Barcelospt_BR
dc.creatorAlisson Ronieri Cadorept_BR
dc.creatorLeonardo Cristiano Campospt_BR
dc.creatorKenji Watanabept_BR
dc.creatorTakashi Taniguchipt_BR
dc.creatorFrancisco Carlos Barbosa Maiapt_BR
dc.creatorRaul de Oliveira Freitaspt_BR
dc.creatorÂngelo Malachias de Souzapt_BR
dc.creatorChristoph Friedrich Denekept_BR
dc.date.accessioned2023-05-29T19:20:27Z-
dc.date.available2023-05-29T19:20:27Z-
dc.date.issued2017-
dc.citation.issue18pt_BR
dc.identifier.doihttps://doi.org/10.17648/bwsp-2017-79325pt_BR
dc.identifier.issn2527-0672pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/54111-
dc.description.resumoThe optical response of exfoliated graphene on different surfaces (silicon dioxide (SiO2) and hexagonal boron nitride (hBN)) is investigated via scattering-type scanning near-field optical microscopy (s-SNOM) using broadband infrared synchrotron radiation. Basically, we use a commercial s-SNOM microscope integrated into the infrared synchrotron-based beamline to investigate with nanoscale resolution the optical response of different graphene layers on SiO2 or hBN substrates. Comparing atomic force microscopic topography and broadband mid-infrared images (lateral resolution of 30 nm), we confirm that optical response of both systems depends on the specific interactions between graphene and substrate as well as on the number of graphene layers. This dependence is explained by particular interactions of graphene and SiO2, wherein graphene plasmons couple to surface phonon-polaritons of SiO2. In the case of graphene and hBN, we observe coupling of the graphene plasmon to the hyperbolic phonon-polaritons of hBN.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.description.sponsorshipINCT – Instituto nacional de ciência e tecnologia (Antigo Instituto do Milênio)pt_BR
dc.format.mimetypepdfpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE FÍSICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofBrazilian Workshop on Semiconductor Physics-
dc.rightsAcesso Abertopt_BR
dc.subjectGraphene plasmonspt_BR
dc.subjectBoron nitridept_BR
dc.subjectPhonons polaritonspt_BR
dc.subject.otherPlasmonspt_BR
dc.subject.otherNitreto de boropt_BR
dc.subject.otherFononspt_BR
dc.subject.otherPolaritonspt_BR
dc.subject.otherGrafenopt_BR
dc.titleInfrared nano-imaging and -spectroscopy of N graphene layers on SiO2 and hexagonal boron nitride substratespt_BR
dc.typeArtigo de Eventopt_BR
dc.url.externahttps://proceedings.science/bwsp/papers/infrared-nano-imaging-and-spectroscopy-of-n-graphene-layers-on-sio2-and-hexagona?lang=enpt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-5778-7161pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-1081-0915pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-6792-7554pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-4998-4624pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-3285-5447pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-8703-4283pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-8556-386Xpt_BR
Appears in Collections:Artigo de Evento

Files in This Item:
File Description SizeFormat 
Infrared nano imaging and spectroscopy.pdf401.87 kBAdobe PDFView/Open
Show simple item record


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.