title: Controlling graphene plasmons with resonant metal antennas and spatial conductivity patterns.
abstract: Graphene plasmons promise unique possibilities for controlling light in nanoscale devices and for merging optics with electronics. We developed a versatile platform technology based on resonant optical antennas and conductivity patterns for launching and control of propagating graphene plasmons, an essential step for the development of graphene plasmonic circuits. We launched and focused infrared graphene plasmons with geometrically tailored antennas and observed how they refracted when passing through a two-dimensional conductivity pattern, here a prism-shaped bilayer. To that end, we directly mapped the graphene plasmon wavefronts by means of an imaging method that will be useful in testing future design concepts for nanoscale graphene plasmonic circuits and devices.
authors.affiliation: CIC nanoGUNE, 20018 Donostia-San Sebastián, Spain.
authors.forename: P
authors.initials: P
authors.lastname: Alonso-González
authors.affiliation: CIC nanoGUNE, 20018 Donostia-San Sebastián, Spain. IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain.
authors.forename: A Y
authors.initials: AY
authors.lastname: Nikitin
authors.affiliation: CIC nanoGUNE, 20018 Donostia-San Sebastián, Spain. I.N.T.I.-CONICET and ECyT-UNSAM, San Martín, Buenos Aires, Argentina.
authors.forename: F
authors.initials: F
authors.lastname: Golmar
authors.affiliation: Graphenea SA, 20018 Donostia-San Sebastián, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Centeno
authors.affiliation: Graphenea SA, 20018 Donostia-San Sebastián, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Pesquera
authors.affiliation: CIC nanoGUNE, 20018 Donostia-San Sebastián, Spain.
authors.forename: S
authors.initials: S
authors.lastname: Vélez
authors.affiliation: CIC nanoGUNE, 20018 Donostia-San Sebastián, Spain.
authors.forename: J
authors.initials: J
authors.lastname: Chen
authors.affiliation: ICFO-Institut de Ciéncies Fotoniques, Mediterranean Technology Park, 08860 Casteldefells, Barcelona, Spain.
authors.forename: G
authors.initials: G
authors.lastname: Navickaite
authors.affiliation: ICFO-Institut de Ciéncies Fotoniques, Mediterranean Technology Park, 08860 Casteldefells, Barcelona, Spain.
authors.forename: F
authors.initials: F
authors.lastname: Koppens
authors.affiliation: Graphenea SA, 20018 Donostia-San Sebastián, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Zurutuza
authors.affiliation: CIC nanoGUNE, 20018 Donostia-San Sebastián, Spain. IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain.
authors.forename: F
authors.initials: F
authors.lastname: Casanova
authors.affiliation: CIC nanoGUNE, 20018 Donostia-San Sebastián, Spain. IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain.
authors.forename: L E
authors.initials: LE
authors.lastname: Hueso
authors.affiliation: IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain. CIC nanoGUNE and UPV/EHU, 20018 Donostia-San Sebastián, Spain. r.hillenbrand@nanogune.eu.
authors.forename: R
authors.initials: R
authors.lastname: Hillenbrand