title: Terahertz imaging employing graphene modulator arrays.
abstract: In this paper we propose and experimentally demonstrate arrays of graphene electro-absorption modulators as electrically reconfigurable patterns for terahertz cameras. The active element of these modulators consists of only single-atom-thick graphene, achieving a modulation of the THz wave reflectance > 50% with a potential modulation depth approaching 100%. Although the prototype presented here only contains 4x4 pixels, it reveals the possibility of developing reliable low-cost video-rate THz imaging systems employing single detector.
authors: Department of Electrical Engineering, University of Notre Dame, Notre Dame, IN 46556, USA. bsensale@nd.edu
authors: Berardi
authors: B
authors: Sensale-Rodriguez
authors: Subrina
authors: S
authors: Rafique
authors: Rusen
authors: R
authors: Yan
authors: Mingda
authors: M
authors: Zhu
authors: Vladimir
authors: V
authors: Protasenko
authors: Debdeep
authors: D
authors: Jena
authors: Lei
authors: L
authors: Liu
authors: Huili Grace
authors: HG
authors: Xing
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D006108:Graphite / Q000737:chemistry*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*; D055053:Terahertz Radiation; D014159:Transducers
chemical_list: D006108:Graphite