Nature Communications (Jan 2016)
Subwavelength nonlinear phase control and anomalous phase matching in plasmonic metasurfaces
Abstract
The fundamental issue of phase-matching across metasurfaces has not been thoroughly addressed. Here, Almeida et al. show full phase control by introducing a spatially varying phase response of a metallic metasurface consisting of subwavelength nanoantennas and demonstrate metasurface-phase-matching.