Optical method and device for irradiating domains at predetermin

Details Optical method and device for irradiating domains at predetermin Optical method and device for irradiating domains at predetermin

1997-08-20

1999-02-02

Hindi, Nabil

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

3692752, G11B 1304

Patent

active

058674551

ABSTRACT:
An optical recording medium, optical recording method with use of it, and optical recording device for it comprise at least one magnetic layer on a substrate, the magnetic layer having a temperature Tco at which sizes of domains of the magnetic layer is sharply shrunk or expanded with temperature, thereby being capable of writing and reproducing high-density information formed of smaller domains than an optical spot diameter in a high signal quality.

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