Optical storage medium and process

Details Optical storage medium and process Optical storage medium and process

1997-05-01

1998-11-17

McPherson, John A.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

430945, 430 19, G11B 724, G11B 700

Patent

active

058374248

ABSTRACT:
A data storage process which includes an erasable high speed, high density, storage medium having a transition metal oxide layer where said oxide layer is capable of undergoing an optically readable chemical change when simultaneously exposed to heat and to light of a selected wavelength. An optically readable image is formed in selected regions of the oxide layer under ambient conditions which include O.sub.2 by simultaneously exposing said layer to heat and to radiation in the blue-green or shorter wavelength spectrum. The image is erased by heating the entire medium using a furnace or by heating selected portions with IR radiation.

REFERENCES:
patent: 4548889 (1985-10-01), Nemoto et al.
patent: 4711815 (1987-12-01), Yoshiike et al.

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