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<title>High-density recording on phase-change optical disks</title>
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1995
Year
Optical EngineeringPhotonicsHigh DensityTechnologyOptical MaterialsEngineeringOptical PropertiesOptical TestingApplied PhysicsPhase Change DisksOptical Information ProcessingPhase-change Optical DisksOptical CommunicationOptical SystemsDigital ImagingOptoelectronicsCurrent Status
Current status of high density recording on phase change optical disks is summarized. More than 4.1 Mbits/mm<SUP>2</SUP> density of direct overwriting on phase change disks was achieved using red (680 nm) high power (35mW) LDs, large NA (0.6) optics, thin (t0.6 mm) substrates, mark-edge recording with write compensation, and land-groove recording technologies.