Optical recording/reproducing by changing perpendicular magnetic

Details Optical recording/reproducing by changing perpendicular magnetic Optical recording/reproducing by changing perpendicular magnetic

1992-03-06

1994-05-24

Berman, Jack I.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 13, 369288, G11B 7125

Patent

active

053155777

ABSTRACT:
An optical recording/ reproducing method which is characterized by irradiating a magnetic material having a perpendicular anisotropy with a laser beam to cause a change in the perpendicular anisotropy in the magnetic material to a non-perpendicular anisotropy thereby to record information; and by reproducing the information by detecting a change in a magneto-optic effect such as the Kerr effect. Also disclosed are an optical recording material and an optical recording device for use in the optical recording/reproducing method.

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