Magneto-plasmonic waveguides for non-reciprocal devices

Reliable communication networks require high-performance, low-cost, efficient, and miniaturized components, especially in the photonic domain. In particular, essential building blocks for photonic integrated systems are optical circulators and isolators. These non-reciprocal elements can enable full integration of the systems, can diversify circuit architectures, and can protect lasers from spurious back reflections in the optical path. Magneto-plasmonic waveguides support asymmetric modes resulting from the Transverse Magneto-Optical Kerr Effect (TMOKE) interaction between Magneto-Optic (MO) materials and coupled plasmonic modes. The induced asymmetry in the mode profiles and the non-reciprocal propagation can be exploited for designing integrated isolators and circulators.