Planar metallic lenses for visible light focusing Satoshi Ishii, Xingjie Ni, Vladimir M. Shalaev, Alexander V. Kildishev Abstract: Subwavelength holes as well as subwavelength antennas milled in metallic thin films can shift the phase of incident light. We experimentally demonstrate that the holey lenses and antenna lenses which have sets of subwavelength holes and subwavelength antennas, respectively, can perform as planar spherical lenses in the visible. |