ANGULAR PERFORMANCE OF PHASE-OPTIMIZED MAGNETOOPTIC QUADRILAYERS

A procedure is described for the design of quadrilayer structures that enhance the polar Kerr effect in magneto-optic recording media. An es sential feature of the method is a systematic approach that enables th e achievement of phase optimization, which results in the elimination of the undesirable effects of parasitic Kerr ellipticity. Examples are presented based on the Co/Pt superlattice and amorphous TbFeCo. The s pectral and angular performances of fabricated devices are compared wi th theory.