A PtCo multilayer magneto-optic recording medium is deposited on a nano-structured 2D sinusoidal grating substrate to study the concept of plasmon enhancement of magneto-optic readout and other phenomena associated with this type of surface. Comparison is made with the magneto-optic behaviour of a simple cobalt film deposited on the same structured substrate and PtCo multilayers in the Kretschmann-Raether configuration.
