OPTICAL RECORDING MEDIUM AND METHOD FOR REPRODUCING INFORMATION IN OPTICAL RECORDING MEDIUM

摘要

An optical recording medium (10) includes a substrate (12), a first dielectric layer (14), a recording layer (16), a second dielectric layer (18), a super-resolution layer (20), and a third dielectric layer (22), which are provided in that order. The super-resolution layer (20) is formed of a material configured such that voids are generated when the material is irradiated with DC light at a predetermined irradiation power for 1 to 300 seconds. Therefore, super-resolution reproduction can be made such that the irradiation power of a readout laser beam does not depend on the size of a recording mark.