metasurfaces

polarization

pet ct

metamaterials

polarizer

patients ra

mortality_69498

polarization conversion

wavefront

circularly

motion planning

po sub

bacterial_57212

polarization states

metasurface_24723

dual-band

dogs_37752

psychological state

Photonics Research

Transmission of an anisotropic metasurface is analyzed in a polar base relying on the Jones calculus, and polarization conversion from the spatial uniform polarization to the spatial nonuniform polarization is explored. Simple and compact polarization converters based on rectangular holes or cross holes etched in silver film are designed, and polarization conversions from the linear and circular polarization to the radial and azimuthal polarization are realized. Numerical simulations of three designed polarization converters consisting of rectangular holes equivalent to polarizers and quarter- and half-wave plates, exhibit the perfect polarization conversion. The experiment results consistent with the simulations verify theoretic predictions. This study is helpful for designing metasurface polarization converters and expanding the application of a metasurface in polarization manipulations.

Conversion between polarization states based on a metasurface