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Figure 1

From: Tunable and switchable polarization rotation with non-reciprocal plasmonic thin films at designated wavelengths

Figure 1

Figure 1 Illustration of the wavelength-specific Faraday rotation enhancement. (a) Geometry of the EuSe–Au hybrid structure. The applied magnetic field and incident light are normal to the EuSe film. There are two cardinal polarization orientations, namely, TE (electric field parallel to the gold wires) and TM (electric field perpendicular to the gold wires). Light coupled to the waveguide undergoes multiple round-trips through the EuSe slab and accumulates Faraday rotation. (b) Schematic dispersion graph of the hybrid structure. For TM-incident polarization, the plasmonic resonance of the gold wires couples strongly to the TM waveguide mode of the EuSe slab and forms a waveguide-plasmon-polariton. TE, transverse electric; TM, transverse magnetic.

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