Effects of graphene on light transmission spectra in Dodecanacci photonic quasicrystals

Silva, E.F.; Vasconcelos, Manoel Silva de; Costa, C.H.; Anselmo, Dory Hélio Aires de Lima; Mello, V.D.

Effects of graphene on light transmission spectra in Dodecanacci photonic quasicrystals

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dc.contributor.author	Silva, E.F.
dc.contributor.author	Vasconcelos, Manoel Silva de
dc.contributor.author	Costa, C.H.
dc.contributor.author	Anselmo, Dory Hélio Aires de Lima
dc.contributor.author	Mello, V.D.
dc.date.accessioned	2020-09-01T00:33:13Z
dc.date.available	2020-09-01T00:33:13Z
dc.date.issued	2019
dc.description.resumo	We 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 structures	pt_BR
dc.identifier.citation	SILVA, 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.doi	10.1016/j.optmat.2019.109450.
dc.identifier.issn	0925-3467
dc.identifier.uri	https://repositorio.ufrn.br/jspui/handle/123456789/29914
dc.language	en	pt_BR
dc.publisher	Elsevier	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Graphene	pt_BR
dc.subject	Photonic quasicrystals	pt_BR
dc.subject	Dodecanacci	pt_BR
dc.subject	Light transmission	pt_BR
dc.title	Effects of graphene on light transmission spectra in Dodecanacci photonic quasicrystals	pt_BR
dc.type	article	pt_BR