title: Negative refraction at telecommunication wavelengths through plasmon-photon hybridization.
abstract: We demonstrate negative refraction at telecommunication wavelengths through plasmon-photon hybridization on a simple microcavity with metallic mirrors. Instead of using conventional metals, the plasmonic excitations are provided by a heavily doped semiconductor which enables us to tune them into resonance with the infrared photon modes of the cavity. In this way, the dispersion of the resultant hybrid cavity modes can be widely adjusted. In particular, negative dispersion and negative refraction at telecommunication wavelengths on an all-ZnO monolithical cavity are demonstrated.
authors.forename: Sascha
authors.initials: S
authors.lastname: Kalusniak
authors.forename: Sergey
authors.initials: S
authors.lastname: Sadofev
authors.forename: Fritz
authors.initials: F
authors.lastname: Henneberger