Magneto-optical disk possessing enhanced anti-reflective and ant

Details Magneto-optical disk possessing enhanced anti-reflective and ant Magneto-optical disk possessing enhanced anti-reflective and ant

1991-05-17

1993-07-13

Nguyen, Hoa T.

Dynamic information storage or retrieval

Storage medium structure

Specified material

428694XS, 428900, 428694NF, 369 13, 3692752, 360114, 360131, G11B 724, G11B 1304, G11B 1112, G11B 1110

Patent

active

052280241

ABSTRACT:
A magneto-optical disk comprising a polycarbonate substrate, a first protective coating coated on the polycarbonate substrate, a recording layer coated on the first protective coating, a second protective coating coated on the recording layer, a reflective layer coated on the second protective coating, wherein the first and second protective coatings comprises at least one multiple layer of SiNx/TiO.sub.2 /SiNx layer or a coating of an amorphous AsxS.sub.1 -x layer. The present invention can provide a magneto-optical disk of a good anti-reflection effect as a result of considerable increase of the .theta.k value, and a good stability against the oxidation.

REFERENCES:
patent: 4801499 (1989-01-01), Aoyama et al.
patent: 4920007 (1990-04-01), Sawamura et al.
Krim et al.; J. Appl. Phys. 69(8); Apr. 15, 1991; pp. 5987-5988.

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