title: Plasmon-Enhanced Terahertz Photodetection in Graphene.
abstract: We report a large area terahertz detector utilizing a tunable plasmonic resonance in subwavelength graphene microribbons on SiC(0001) to increase the absorption efficiency. By tailoring the orientation of the graphene ribbons with respect to an array of subwavelength bimetallic electrodes, we achieve a condition in which the plasmonic mode can be efficiently excited by an incident wave polarized perpendicular to the electrode array, while the resulting photothermal voltage can be observed between the outermost electrodes.
authors: †Center for Nanophysics and Advanced Materials, University of Maryland, College Park, Maryland 20742-4111, United States.
authors: Xinghan
authors: X
authors: Cai
authors: †Center for Nanophysics and Advanced Materials, University of Maryland, College Park, Maryland 20742-4111, United States.
authors: Andrei B
authors: AB
authors: Sushkov
authors: ‡Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, United States.
authors: Mohammad M
authors: MM
authors: Jadidi
authors: Luke O
authors: LO
authors: Nyakiti
authors: ¶U.S. Naval Research Laboratory, Washington, D.C. 20375, United States.
authors: Rachael L
authors: RL
authors: Myers-Ward
authors: ¶U.S. Naval Research Laboratory, Washington, D.C. 20375, United States.
authors: D Kurt
authors: DK
authors: Gaskill
authors: ‡Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, United States.
authors: Thomas E
authors: TE
authors: Murphy
authors: †Center for Nanophysics and Advanced Materials, University of Maryland, College Park, Maryland 20742-4111, United States.|§School of Physics, Monash University, Victoria 3800, Australia.
authors: Michael S
authors: MS
authors: Fuhrer
authors: †Center for Nanophysics and Advanced Materials, University of Maryland, College Park, Maryland 20742-4111, United States.
authors: H Dennis
authors: HD
authors: Drew
keywords: Graphene; photodetection; plasmons; terahertz