Hybridized nanocavities as single-polarized plasmonic antennas

Ahmet Ali Yanik, Ronen Adato, Shyamsunder Erramilli, Hatice Altug
2009 Optics Express  
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
more » ... 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.
doi:10.1364/oe.17.020900 pmid:19997327 fatcat:rljnpr4aurgtbi3eqnu4dgo7bm