Polarization-independent metasurface lens employing the Pancharatnam-Berry phase

• DOI: 10.1364/oe.26.024835
• Publication Date: 2018-09-10T19:15:56Z
• Authors: Dianmin Lin; Aaron L. Holsteen; Elhanan Maguid; Pengyu Fan; Pieter G. Kik; Erez Hasman; Mark L. Brongersma
• Keywords: Ray

Metasurface optical elements, phased arrays constructed from a dense arrangement of nanoscale antennas, are promising candidates for the next generation flat components. Metasurfaces that rely on Pancharatnam-Berry phase facilitate complete and efficient wavefront control. However, their operation typically requires control over polarization state incident light to achieve desired function. Here, we circumvent this inherent sensitivity by multiplexing two metasurfaces were designed same function with opposite helicity. We analyze performance different approaches, demonstrate subwavelength random interleaved polarization-independent metasurface lens operating in visible spectrum, providing diffraction-limited spot size shared-aperture.