Patent ID: 6587427
Filing Date: 2003-07-01
Classification: G11B,Y10T

Abstract:
A magneto-optical recording medium in a near-field optical storage system wherein a flying optical head is suspended over said medium by a cushion of gas, comprising:a magneto-optical recording layer including at least one recording track for magneto-optical recording of information; at least one tracking feature associated with the at least one recording track; an upper transparent dielectric layer atop the magneto-optical layer, the upper transparent dielectric layer leveling the at least one recording track and having an upper surface substantially planar over a recordable area of the medium above the at least one recording track and the at least one tracking feature, the upper surface of the upper transparent dielectric layer substantially forming an upper flat medium surface over said recordable area; a reflector layer below the magneto-optical layer; a base substrate below the reflector layer; and a lower transparent dielectric layer below the magneto-optical recording layer, wherein the reflector layer is below the lower transparent dielectric layer, wherein the lower dielectric layer comprises a high index dielectric material, and wherein the upper dielectric layer comprises a first sublayer of low index dielectric material and a second sublayer of high index dielectric material.