Abstract: The present invention relates to a high-density optical data storage structure. The structure comprising a substrate provided with physical marks, said physical marks being covered by at least one active layer, the physical state of the active layer being modified when irradiated by a laser beam, the substrate consisting of adjacent tracks that are alternately recessed and protruding, the physical marks consisting of pits in the land tracks and of bumps in the groove tracks. The invention is applicable, notably, to the production of high storage capacity optical disks and more particularly to the production of prerecorded optical disks.
Type:
Application
Filed:
February 27, 2009
Publication date:
March 10, 2011
Applicants:
SOCIETE DES MOULAGES PLASTIQUES DE L'OUEST, Commissariat a L'Energie Atomique et aux Energies Alternatives