FESEM images of an array of Au nanoparticles atop Bi:YIG: (a) top and (b) side views.
(a) Transmission spectra for linearly polarized light with orthogonal polarizations. (b) The differential transmissivity extracted from the spectra shown in plot (a) and the SPR-induced rotation spectrum for light with the 45° direction of polarization.
The SPR-induced rotation of the plane of polarization for differently polarized incoming light beams. External magnetic field was not applied.
Faraday rotation spectra of the Bi:YIG-Au structure and the Bi:YIG film; the thickness of the Bi:YIG film in both samples was . External magnetic field was .
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