| 摘要 |
The optical storage medium comprises a substrate layer, a data layer having a pit/land data structure with data arranged in tracks on the substrate layer and a nonlinear layer with a super-resolution material, wherein the data structure comprises diffractive pits and lands having a size above an optical resolution limit of a pickup for reading of the data and super-resolution pits and lands having a size below the optical resolution limit, said pits and lands having a defined length with regard to a channel bit length. A diffractive land preceding a super-resolution pit is changed by a first length depending on the laser power of the pickup, and/or a diffractive pit preceding a super-resolution land is changed by the first length depending on the laser power of the pickup, to compensate a phase shift of the super-resolution pit, respectively super-resolution land.
|
