Optical information recording medium, a manufacturing method the

Details Optical information recording medium, a manufacturing method the Optical information recording medium, a manufacturing method the

1993-09-22

1995-10-17

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

430495, 430945, 430964, 3461351, 369283, 369284, 369288, G11B 724, G03C 1725

Patent

active

054590183

ABSTRACT:
Described is an optical recording medium having a mixture or integrated layers of a metal and an oxide which react with each other under an exothermic reaction at a high temperature upon receiving an irradiation of a laser. The metal and the oxide are in a relation that the oxide has a standard enthalpy of formation higher than that of the oxide obtained by oxidizing the metal. An area irradiated with a laser spot is heated to a high temperature and the oxide at the area is reduced by the metal into a metal which changes in the optical constant and can be detected optically. The reduction reaction in an exothermic reaction generates a thermal energy in addition to the thermal energy of the irradiated laser. The optical recording medium of this structure can make the recording work more efficient. A manufacturing method of the optical recording medium and a recording method using the same are also disclosed.

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