Anisotropic transmission of light through a plasmonic bull's eye with an elliptical aperture

摘要

Anisotropic transmission of light through a plasmonic bull's eye with an elliptical central aperture in a thin Au film is analyzed experimentally. The results show the light polarized along the minor axis of the elliptic aperture has significantly larger enhanced optical transmission (EOT) than the other orthogonal polarization, which can further utilized in polarized EOT devices.