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dc.contributor.authorGomez Diaz, J. S.
dc.contributor.authorMoldovan, C
dc.contributor.authorCapdevila Cascante, Santiago
dc.contributor.authorRomeu Robert, Jordi
dc.contributor.authorBernard, L. S.
dc.contributor.authorMagrez, A
dc.contributor.authorIonescu, A. M.
dc.contributor.authorPerruisseau Carrier, Julien
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.date.accessioned2015-12-23T14:01:12Z
dc.date.available2015-12-23T14:01:12Z
dc.date.issued2015-03-01
dc.identifier.citationGomez, J., Moldovan, C., Capdevila, S., Romeu, J., Bernard, L., Magrez, A., Ionescu, A., Perruisseau, J. Self-biased reconfigurable graphene stacks for terahertz plasmonics. "Nature communications", 01 Març 2015, vol. 6.
dc.identifier.issn2041-1723
dc.identifier.urihttp://hdl.handle.net/2117/81043
dc.description.abstractThe gate-controllable complex conductivity of graphene offers unprecedented opportunities for reconfigurable plasmonics at terahertz and mid-infrared frequencies. However, the requirement of a gating electrode close to graphene and the single 'control knob' that this approach offers limits the practical implementation and performance of these devices. Here we report on graphene stacks composed of two or more graphene monolayers separated by electrically thin dielectrics and present a simple and rigorous theoretical framework for their characterization. In a first implementation, two graphene layers gate each other, thereby behaving as a controllable single equivalent layer but without any additional gating structure. Second, we show that adding an additional gate allows independent control of the complex conductivity of each layer within the stack and provides enhanced control on the stack equivalent complex conductivity. These results are very promising for the development of THz and mid-infrared plasmonic devices with enhanced performance and reconfiguration capabilities.
dc.language.isoeng
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.lcshPlasmons (Physics)
dc.subject.otherTime-domain spectroscopy
dc.subject.otherLayer graphene
dc.subject.otherWave-guides
dc.subject.otherMetameterials
dc.subject.otherHeterostrucures
dc.subject.otherTransistor
dc.subject.otherModulators
dc.subject.otherScattering
dc.subject.otherTransport
dc.subject.otherDevices
dc.titleSelf-biased reconfigurable graphene stacks for terahertz plasmonics
dc.typeArticle
dc.subject.lemacPlasmons (Física)
dc.contributor.groupUniversitat Politècnica de Catalunya. ANTENNALAB - Grup d'Antenes i Sistemes Radio
dc.identifier.doi10.1038/ncomms7334
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://www.nature.com/ncomms/2015/150302/ncomms7334/full/ncomms7334.html
dc.rights.accessOpen Access
local.identifier.drac15626321
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/FP7/300966/EU/Nano-scale and Artificial Materials for Adaptive Electromagnetic Wave Control/MARCONI
local.citation.authorGomez, J.; Moldovan, C.; Capdevila, S.; Romeu, J.; Bernard, L.; Magrez, A.; Ionescu, A.; Perruisseau, J.
local.citation.publicationNameNature communications
local.citation.volume6


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