10 January 2002 Multilayer write-once media with Te-O-Pd films utilizing violet laser
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Proceedings Volume 4342, Optical Data Storage 2001; (2002); doi: 10.1117/12.453382
Event: Optical Data Storage, 2001, Santa Fe, NM, United States
Abstract
Multi-layer write-once optical disks with tellurium suboxide palladium-doped phase-change recording films were designed and adopted to read/write utilizing a violet laser. A dual- layer medium showed carrier to noise ratios (CNRs) of more than 50 dB within a laser power of 7 mW at a linear velocity of 5 m/s in each the condition of numerical aperture (NA) equals 0.65 and NA equals 0.85, which corresponds to a recording capacity of 27 GB and 45 GB on a dual-layer disk of (phi) 120 mm in diameter, respectively. Furthermore, a quadruple-layer medium showed CNRs of more than 48 dB within a laser power of 12 mW at a linear velocity of 5 m/s in the condition of NA equals 0.85, which corresponds to a recording capacity of 90 GB on a quadruple-layer disk of (phi) 120 mm.
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Hideki Kitaura, Kazuya Hisada, Kenji Narumi, Kenichi Nishiuchi, Noboru Yamada, "Multilayer write-once media with Te-O-Pd films utilizing violet laser", Proc. SPIE 4342, Optical Data Storage 2001, (10 January 2002); doi: 10.1117/12.453382; https://doi.org/10.1117/12.453382
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KEYWORDS
Zinc

Reflectivity

Transmittance

Radium

Tantalum

Absorption

Data storage

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