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Proceedings Paper

New Optical Recording Material For Direct-Read-After-Write (DRAW) Disks
Author(s): Kenjirou Watanabe; Tomoya Oyama; Yoshio Aoki; Noboru Sato; Senri Miyaoka
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Paper Abstract

The optical characteristics of Sb2Se3 and Sb2 Te 3 films changed as a result of an amorphous crystalline phase transition below 200 °C. The respective reflectivity of 400 A Sb2Se3 and 300 A Sb2Te3 films, each on a Te reflective layer, increased from 10% to 30% and from 45% to 65% by laser radiation. The recording sensitivity of a disc is enhanced by using this unique double-layer structure which consists of a recording layer and a heat (laser) absorbing layer. A high-performance optical laser disc on which both digital and analog signals can be recorded by a diode laser has been developed using these newly developed, highly sensitive recording materials.

Paper Details

Date Published: 1 January 1983
PDF: 5 pages
Proc. SPIE 0382, Optical Data Storage, (1 January 1983); doi: 10.1117/12.970199
Show Author Affiliations
Kenjirou Watanabe, Sony Corporation (Japan)
Tomoya Oyama, Sony Corporation (Japan)
Yoshio Aoki, Sony Corporation (Japan)
Noboru Sato, Sony Corporation (Japan)
Senri Miyaoka, Sony Corporation (Japan)

Published in SPIE Proceedings Vol. 0382:
Optical Data Storage
Di Chen, Editor(s)

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