Patent ID: 6610380
Filing Date: 2003-08-26
Classification: G11B,Y10T

Abstract:
An optical information recording medium, comprising a transparent substrate on which an information layer is disposed, said information layer comprising a recording layer and a dielectric layer, andsaid recording layer containing Te, O and M (wherein M is one or more elements selected from Al, Si, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, Zr, Nb, Mo, Ru, Rh, Pd, Ag, In, Sn, Sb, Hf, Ta, W, Re, Os, Ir, Pt, Au and Bi), wherein a content ratio of O-atom in said recording layer ranges from 25 atomic percent to 60 atomic percent, and a content ratio of M-atom therein ranges from 1 atomic percent to 35 atomic percent, and a refractive index n of said dielectric layer is not less than 1.5.