Development of Rewritable Dual-Layer Phase-Change Optical Disks
NATIONAL CHIAO TUNG UNIV HSINCHU (TAIWAN) INST OF ELECTRO-OPTICAL ENGINEERING
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Dual-layer optical disks comprised of two data layers were developed to study readoutwriteerase characteristics. This disk was composed of recording layer land 2, of high transmittance and high reflectivity, respectively. Layer 1 and 2 of 15 and 20 nm increase transmittance and reduce writing power for recording. Only 1.5 mV laser power was sufficient for readout, 9 and 16 mW was required for recording on recording layer 1 and 2, respectively. The dual-layer disk can double data capacity on a disk substrate.
- Computer Systems
- Electricity and Magnetism