Magneto-optic storage media

Details Magneto-optic storage media Magneto-optic storage media

1983-08-08

1985-12-03

Corbin, John K.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

350355, 369 13, 360131, 365122, G02F 109, G11C 1306

Patent

active

045562911

ABSTRACT:
A magneto-optic storage media which utilizes two layers or films of magnetic material, with the magneto-optic hysteresis loop of one of the films being of a sense opposite to the sense of the magneto-optic hysteresis loop of the other film. The media permits the Farraday effect polarization rotations produced by one of the magnetic films to be in phase with Kerr effect polarization rotations produced by the other of the magnetic films, such that additive mode conversion is provided from different portions of the media whereby the detected signal has an increased signal-to-noise ratio.

REFERENCES:
patent: 3838450 (1974-09-01), Bongers et al.
patent: 3845306 (1974-10-01), Kohlmannsperger
patent: 3928870 (1975-12-01), Ahrenkiel et al.
patent: 4202022 (1980-05-01), Imamura et al.
patent: 4466035 (1984-08-01), Connell et al.

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