Beyond plasmonic enhancement of the transverse magneto-optical Kerr effect with low-loss high-refractive-index nanostructures

We demonstrate a concept for a large enhancement of the transverse magneto-optical Kerr effect (TMOKE) in the transmission mode. The concept exploits diffracted waves from dielectric-MO grating ribs to excite the guided modes in a high-refractive-index planar waveguide, thus opening different routes for efficient, integrated, and low-loss magneto-optical devices. The high Q factors from very narrow peaks may permit applications in high-resolution sensing/biosensing.

Automated summary

By utilizing diffracted waves from dielectric-magnetic optical grating ribs to excite guided modes in high-refractive-index planar waveguides, a large enhancement of the transverse magneto-optical Kerr effect (TMOKE) in the transmission mode is demonstrated, providing efficient, integrated, and low-loss magneto-optical devices with potential applications in high-resolution sensing/biosensing.