GAO , Zhanjie

The Pancharatnam-Berry (PB) metasurfaces have been considered as the innovative optical devices for efficient manipulation of both the phase and the polarization of electromagnetic field. Here, we present the simultaneous generation of circularly-, elliptically-, and linearly-polarized states from a single linearly-polarized incident beam by...

The Pancharatnam-Berry (PB) metasurfaces have been considered as the innovative optical devices for efficient manipulation of both the phase and the polarization of electromagnetic field. Here, we present the simultaneous generation of circularly-, elliptically-, and linearly-polarized states by a simplest PB metassurface with one-dimensional...

Relying on the local orientation of nanostructures, Pancharatnam-Berry metasurfaces are currently enabling a new generation of polarization-sensitive optical devices. A systematical mesoscopic description of topological metasurfaces is developed, providing a deeper understanding of the physical mechanisms leading to the polarization-dependent...