Jamie’s plasmonic circulator published in Nano Letters

A polarization-actuated circulator for surface plasmon polaritons (SPPs) is experimentally realized in the optical regime for the first time. We demonstrate circulations of SPPs can be actuated either by linearly polarized excitation or by spin angular momenta carried by circular polarizations. Experimentally, a wide optical operational bandwidth of ~ 100 nm is achieved.

https://doi.org/10.1021/acs.nanolett.0c03008