title: Hybridized nanocavities as single-polarized plasmonic antennas.
abstract: We experimentally demonstrate that hybridized nanocavities in optically thick metal films radiate in coherence, and act as an efficient single-polarized plasmonic nano-antenna array. We employ propagating and localized plasmons to enhance polarization control along one axis, with total suppression of the perpendicular polarization component. The relationship between the near-field and far-field radiation is established through a quasi-static model connecting the individual nano-antenna behavior to the phenomenon of extraordinary light transmission. Hybridized nanocavity antennas, with length scales below the conventional diffraction limit, present opportunities for potential applications in photovoltaics, optoelectronic devices and optical sensors.
authors.affiliation: Department of Electrical and Computer Engineering, Boston University, Boston, MA 02215, USA
authors.forename: Ahmet Ali
authors.initials: AA
authors.lastname: Yanik
authors.forename: Ronen
authors.initials: R
authors.lastname: Adato
authors.forename: Shyamsunder
authors.initials: S
authors.lastname: Erramilli
authors.forename: Hatice
authors.initials: H
authors.lastname: Altug
mesh_terms: D055590:Electromagnetic Phenomena; D004867:Equipment Design; D008027:Light; D008670:Metals / Q000737:chemistry*; D015233:Models, Statistical; D053758:Nanoparticles / Q000737:chemistry; D036103:Nanotechnology / Q000379:methods*; D055095:Optics and Photonics; D012542:Scattering, Radiation; D012825:Silicon; D020349:Surface Plasmon Resonance
chemical_list: D008670:Metals; D012825:Silicon