Development of rewritable dual-layer phase-change optical disks

Feng Hsu Wu*, Tsung-Eong Hsien, Han Ping D Shieh

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


Dual-layer optical disks comprised of two data layers were developed to study readout/write/erase characteristics. This disk was composed of recording layer 1 and 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 mW laser power was sufficient for readout, 9 and 16 mW was required for recording on recording layer 1 and 2, respectively. These dual-layer disk can double data capacity on a disk substrate.

Original languageEnglish
Pages (from-to)250-255
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 26 Jul 2000
EventOptical Storage and Optical Information Processing - Taipei, Taiwan
Duration: 26 Jul 200027 Jul 2000

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