Magnetooptical recording medium with laminated anti-reflection f

Details Magnetooptical recording medium with laminated anti-reflection f Magnetooptical recording medium with laminated anti-reflection f

1984-05-29

1987-01-20

Lesmes, George F.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

350377, 350379, 360131, 428432, 428472, 428694, 428701, 428702, 428900, G11B 724

Patent

active

046379533

ABSTRACT:
A magnetooptical recording medium is provided which comprises (a) a light-transmissive substrate formed of a material selected from the group consisting of plastic and glass, (b) a multilayer film disposed on said light-transmissive substrate, and multilayer film being formed by alternate lamination in three or more odd number of a high-refractive film composed of a high-refractive material and a low-refractive film containing SiO.sub.2 as the main constituent and the film in contact with said light-transmissive substrate being a high refractive film, and (c) a recording magnetic layer disposed on said multilayer film, recording on said magnetic film being performed by a light beam transmitting said substrate and said multilayer.

REFERENCES:
patent: 3472575 (1969-10-01), Hunt
patent: 3650601 (1972-03-01), Bierlein
patent: 4390600 (1983-06-01), Ohta et al.
patent: 4414650 (1983-11-01), Ohta et al.
patent: 4525028 (1985-06-01), Dorschner
Taylor et al, "Magnetic Anisotropy in Evaporated Amorphous Films of the Ternary System Gdx (Fe.sub.1-y Co.sub.y).sub.1-x ", Journ. App. Phy., 98, 358, 1977.
Keay et al; Optica Acta, vol. 15, p. 373 (1968).
Bell et al; Journal of Quantum Elec., vol. 14, p. 487 (1978).
Cuomo et al; IBM Tech. Dis. Bull., vol. 16, p. 1442 (1973).

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