Kakenov, NurbekTakan, T.Özkan, V. A.Balcı, OsmanPolat, Emre OzanAltan, H.Kocabaş, Coşkun2018-04-122018-04-1220160149-645Xhttp://hdl.handle.net/11693/37716Date of Conference: 22-27 May 2016Conference Name: IEEE MTT-S International Microwave Symposium, IMS 2016Gate-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.EnglishActive THz devicesGrapheneTHz modulatorChemical vapor depositionElectromagnetic wavesIonic liquidsLight modulationModulatorsConference Paper10.1109/MWSYM.2016.7540001