Journal
OPTICS EXPRESS
Volume 21, Issue 2, Pages 2324-2330Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.21.002324
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Funding
- NSF CAREER [ECCS-084910, ECCS-1202452]
- AFOSR [FA9550-12-1-0257]
- Center for Advanced Diagnostics and Therapeutics (AD T)
- Center for Nanoscience and Technology (NDnano) at the University of Notre Dame
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [1530723] Funding Source: National Science Foundation
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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. (C) 2013 Optical Society of America
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