Optical recording medium

Details Optical recording medium Optical recording medium

G - Physics

11

B

352/32.4

G11B 7/24 (2006.01)

Patent

CA 1131774

RCA 72,387 OPTICAL RECORDING MEDIUM ABSTRACT OF THE DISCLOSURE A recording medium comprises a substrate coated with a light reflecting layer which in turn is coated with a light absorbing layer selected from the group consisting of Pt complexes of bis-(dithio-.alpha.-diketones) which have the formula: Image wherein R is a phenyl or substituted phenyl group. During recording, portions of the absorbing layer are ablated, vaporized or melted by an intensity-modulated, focussed light beam, thereby exposing portions of the reflective layer and recording video information as a reflective- antireflective pattern.

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