Electrically controlled terahertz spatial light modulators with graphene arrays

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dc.contributor.authorKakenov, Nurbeken_US
dc.contributor.authorTakan, T.en_US
dc.contributor.authorÖzkan, V. A.en_US
dc.contributor.authorBalcı, Osmanen_US
dc.contributor.authorPolat, Emre Ozanen_US
dc.contributor.authorAltan, H.en_US
dc.contributor.authorKocabaş, Coşkunen_US
dc.coverage.spatialSan Francisco, CA, USAen_US
dc.date.accessioned2018-04-12T11:48:55Z
dc.date.available2018-04-12T11:48:55Z
dc.date.issued2016en_US
dc.departmentDepartment of Physicsen_US
dc.descriptionDate of Conference: 22-27 May 2016en_US
dc.descriptionConference Name: IEEE MTT-S International Microwave Symposium, IMS 2016en_US
dc.description.abstractGate-tunable high-mobility electrons on atomically thin graphene layers provide a unique opportunity to control electromagnetic waves in a very broad spectrum. In this paper, we describe an electrically-controlled multipixel terahertz light modulators. The spatial light modulator is fabricated using two large-area graphene layers grown by chemical vapor deposition and transferred on THz transparent and flexible substrates. Room temperature ionic liquid, inserted between the graphene, provides mutual gating between the graphene layers. We used passive matrix addressing to control local charge density thus the THz transmittance. With this device configuration, we were able to obtain 5×5 arrays of graphene modulator with 65% modulation between 0.1 to 1.5 THz.en_US
dc.identifier.doi10.1109/MWSYM.2016.7540001en_US
dc.identifier.issn0149-645Xen_US
dc.identifier.urihttp://hdl.handle.net/11693/37716
dc.language.isoEnglishen_US
dc.publisherIEEEen_US
dc.relation.isversionofhttp://dx.doi.org/10.1109/MWSYM.2016.7540001en_US
dc.source.titleProceedings of the IEEE MTT-S International Microwave Symposium, IMS 2016en_US
dc.subjectActive THz devicesen_US
dc.subjectGrapheneen_US
dc.subjectTHz modulatoren_US
dc.subjectChemical vapor depositionen_US
dc.subjectElectromagnetic wavesen_US
dc.subjectIonic liquidsen_US
dc.subjectLight modulationen_US
dc.subjectModulatorsen_US
dc.titleElectrically controlled terahertz spatial light modulators with graphene arraysen_US
dc.typeConference Paperen_US

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