Abstract
We report on the reciprocal spin Hall effect of light in T-shaped nanoaperture arrays. Specifically, we demonstrate that the information tied to surface plasmons trajectories can be encoded into free-space spin-carrying photons. The functionality of the system to act as a circular polarizer is therefore implemented in an interference eraser experiment where the device is used as a which-path marker. Complementarity between the wave-like and particle-like behavior of surface plasmons is verified, hence, further demonstrating the outlook for miniaturized optical elements toward on-chip quantum experiments. This work underscores the high potential of plasmonic devices in the realization of integrated polarization optics, hence, opening promising prospects for nanoscale optical communications and quantum photonic network.
Published Version
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