Figure 4: Simulated field distribution and mechanism of the enhanced Faraday rotation.
From: Nonreciprocal plasmonics enables giant enhancement of thin-film Faraday rotation
(a,b) Simulated spatial distribution of |Ex| at TE-polarized incident light (a) and |Hx| at TM-polarized incident light (b) at λ=963 nm. The amplitudes of the fields are normalized to that of the incident light. (c) Simultaneous excitation of plasmon resonance and waveguide mode for TM-polarized incident light contributes to enhanced Faraday rotation φ. Inside the BIG film, the blue lines near the gold wires indicate the field enhancement due to the plasmon resonance, and the yellow line implies light bouncing inside the slab due to the excitation of the waveguide mode.
