Effects of graphene on light transmission spectra in Dodecanacci photonic quasicrystals

dc.contributor.authorSilva, E.F.
dc.contributor.authorVasconcelos, Manoel Silva de
dc.contributor.authorCosta, C.H.
dc.contributor.authorAnselmo, Dory Hélio Aires de Lima
dc.contributor.authorMello, V.D.
dc.date.accessioned2020-09-01T00:33:13Z
dc.date.available2020-09-01T00:33:13Z
dc.date.issued2019
dc.description.resumoWe make a theoretical study of light waves, for both TE and TM polarization with oblique incidence. The light waves propagate on SiO2/TiO2 multilayers, organized by Dodecanacci sequence, where we consider a graphene monolayer at the interfaces between distinct layers. We also calculate numerically the optical transmissivity spectrum, by using the transfer matrix method, for the cases with a graphene sheet and without a graphene sheet at the interfaces. Our results indicate that the whole optical spectrum becomes affected by the presence of graphene in the interfaces. Among these effects, we can highlight the shift of bandgaps to high-frequency regions, the emergence of a graphene induced bandgap at low-frequency regions, and the decreasing of transmittance in the whole frequency range considered here. The self-similarity, which is a property that indicates a fractal spectrum, keeps essentially unchanged when we consider graphene sheets between the layers. Our studies can be applied to electromagnetic filters, where an input gate voltage, applied on the graphene sheets, can control the bandgaps which arise on these structurespt_BR
dc.identifier.citationSILVA, E.F.; VASCONCELOS, M.S.; COSTA, C.H.; ANSELMO, D.H.A.L.; MELLO, V.D.. Effects of graphene on light transmission spectra in Dodecanacci photonic quasicrystals. Optical Materials, [s.l.], v. 98, p. 109450, dez. 2019. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0925346719306706?via%3Dihub. Acesso em: 27 ago. 2020. http://dx.doi.org/10.1016/j.optmat.2019.109450.pt_BR
dc.identifier.doi10.1016/j.optmat.2019.109450.
dc.identifier.issn0925-3467
dc.identifier.urihttps://repositorio.ufrn.br/jspui/handle/123456789/29914
dc.languageenpt_BR
dc.publisherElsevierpt_BR
dc.rightsAttribution 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/br/*
dc.subjectGraphenept_BR
dc.subjectPhotonic quasicrystalspt_BR
dc.subjectDodecanaccipt_BR
dc.subjectLight transmissionpt_BR
dc.titleEffects of graphene on light transmission spectra in Dodecanacci photonic quasicrystalspt_BR
dc.typearticlept_BR

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