  Control of the phase and polarization states of light is an important goal
for nearly all optical research. The development of an efficient optical
component that allows the simultaneous manipulation of the polarization and
phase distribution is needed. Traditional methods require the combination of
multiple optical devices, and a single optical device cannot easily realize
full control of light. We theoretically predict and experimentally verify that
our proposed dual-metasurfaces provide an excellent means to simultaneously
manipulate the phase and polarization of transmission light at the nanoscale.
By introducing a phase gradient along the interface, we achieved a near-perfect
anomalous refraction with controllable polarization in the near-infrared
region. On the basis of these properties, we created a dual-metasurface capable
of generating radially polarized beam, demonstrating the power of full control
of light. This work opens exciting avenues toward improving the degrees of
freedom in the manipulation of light, including the propagation direction and
distribution of the polarization and phase, and may profoundly affect a wide
range of plasmonic applications.
