Information storage by laser beam initiated reactions

Details Information storage by laser beam initiated reactions Information storage by laser beam initiated reactions

1974-09-09

1976-05-25

Hartary, Joseph W.

Recorders

Record receivers and/or driving means therefor

Laminated, impregnated, or coated bases

340173LM, 340173LS, 346 76L, G01D 1534

Patent

active

039597997

ABSTRACT:
There is disclosed herein a relatively low-cost, high density postable storage medium which comprises adjacent thin layers of two or more materials which react upon heating to form a reaction product with optical, magnetic or electrical properties different from the corresponding properties of the reactant materials. Thus, utilizing reactant layers such as aluminum and selenium, the heating results in a reaction product of Al.sub.2 Se.sub.3. The heating agent is notably a laser beam.

REFERENCES:
patent: 3368209 (1968-02-01), McGlaucalin
patent: 3560994 (1971-02-01), Wolff
patent: 3594167 (1971-07-01), Laming
patent: 3655256 (1972-04-01), Claytor
patent: 3740761 (1973-06-01), Fechter
patent: 3831179 (1974-08-01), Brill et al.

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