Electrical Modulation of Fano Resonance in Plasmonic Nanostructures Using Graphene
Abstract
Pauli blocking of interband transistions gives rise to tunable optical properties in single layer graphene (SLG). This effect is exploited in a graphene-nanoantenna hybrid device where Fano resonant plasmonic nanostructures are fabricated on top of a graphene sheet. The use of Fano resonant elements enhances the interaction of incident radiation with the graphene sheet and enables efficient electrical modulation of the plasmonic resonance. We observe electrically controlled damping in the Fano resonances occurring at approximately 2 mu m, and the results are verified by full-wave 3D finite-element simulations. Our approach can be used for development of next generation of tunable plasmonic and hybrid nanophotonic devices.
Keywords
Graphene, Fano resonance, plasmonics, tunable resonances, TERAHERTZ METAMATERIALS, DEVICES, SPECTROSCOPY, TRANSISTOR, ANTENNA, OPTICS, GOLD
DOI
10.1021/nl403253c
Date of this Version
1-2014
Recommended Citation
Emani, Naresh K.; Chung, Ting Fung; Kildishev, Alexander V.; SBirck Nanotechnology Center and School of Electrical and Computer Engineering, Purdue UnBirck Nanotechnology Center and School of Electrical and Computer Engineering, Purdue Universityiversityhalaev, V. M.; Chen, Yong P.; and Boltasseva, Alexandra, "Electrical Modulation of Fano Resonance in Plasmonic Nanostructures Using Graphene" (2014). Birck and NCN Publications. Paper 1531.
http://dx.doi.org/10.1021/nl403253c