Optical recording medium

Details Optical recording medium Optical recording medium

1986-06-13

1988-09-20

Goldberg, E. A.

Recorders

Record receivers and/or driving means therefor

Laminated, impregnated, or coated bases

430495, 430945, G01D 900, G03C 100

Patent

active

047728973

ABSTRACT:
An optical recording medium for optically storing and retrieving information comprises a substrate, two recording layers supported on the substrate and a barrier layer provided between the two recording layers. The two recording layers comprise a thin metallic layer and a thin semiconductor layer which can form an alloy or mixture by applying an energy beam thereto. The barrier layer is employed to prevent the two recording layers from interdiffusing so long as the two recording layers are not exposed to the energy beam.

REFERENCES:
patent: 4335198 (1982-06-01), Hanada et al.

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