Method of recording an ablative optical recording medium

Details Method of recording an ablative optical recording medium Method of recording an ablative optical recording medium

1979-10-22

1982-01-26

Cardillo, Jr., Raymond F.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369275, 346 76L, 3461351, G11B 700, G01D 1534, H04N 576

Patent

active

043131883

ABSTRACT:
An ablative optical recording medium comprises a substrate coated with a light reflecting coating of passivated aluminum which in turn is coated with a light absorbing ablative layer. During recording, portions of the light absorbing layer are ablated, or vaporized, by a modulated focussed light beam, thereby exposing portions of the reflective layer. Information is recorded in the form of a reflective-antireflective pattern.

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Greenblott, IBM Tech. Disc. Bulletin, vol. 14, No. 8, 1/72, p. 2358.

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