New Optical Recording Material For Direct-Read-After-Write (DRAW) Disks

Kenjirou Watanabe; Tomoya Oyama; Yoshio Aoki; Noboru Sato; Senri Miyaoka

doi:10.1117/12.970199

1 January 1983 New Optical Recording Material For Direct-Read-After-Write (DRAW) Disks

Kenjirou Watanabe, Tomoya Oyama, Yoshio Aoki, Noboru Sato, Senri Miyaoka

Proceedings Volume 0382, Optical Data Storage; (1983) https://doi.org/10.1117/12.970199
Event: Optical Data Storage, 1983, Incline Village, United States

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.

Citation Download Citation

Kenjirou Watanabe, Tomoya Oyama, Yoshio Aoki, Noboru Sato, and Senri Miyaoka "New Optical Recording Material For Direct-Read-After-Write (DRAW) Disks", Proc. SPIE 0382, Optical Data Storage, (1 January 1983); https://doi.org/10.1117/12.970199

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