Optical recording disc and method for manufacturing optical recording disc

摘要

It is an object of the present invention to provide an optical recording disc which can record data constituted by a recording mark train including recording marks and blank regions neighboring recording marks therein and reproduce the data therefrom in a desired manner even in the case where the lengths of a recording mark and a blank region between neighboring recording marks are shorter than the resolution limit and whose storage capacity can be markedly increased and a method for manufacturing such an optical recording disc._An optical recording disc is constituted so that data are recorded therein and data are reproduced therefrom with the irradiation with a laser beam and includes a laminated body formed by laminating a decomposition reaction layer 5 containing platinum oxide PtOx as a primary component and a light absorbing layer 7 so as to sandwich a second dielectric layer 6 and x in the chemical formula: PtOx of the platinum oxide contained in the decomposition reaction layer 5 is equal to or larger than 1.0.