Optical information recording medium and recording method

Details Optical information recording medium and recording method Optical information recording medium and recording method

G - Physics

11

B

42/1, 352/32.4

G11B 7/26 (2006.01) B41M 5/00 (2006.01) G11B 7/004 (2006.01) G11B 7/24 (2006.01) G11B 7/244 (2006.01) G11B 7/247 (2006.01) G11B 7/258 (2006.01)

Patent

CA 2015811

An optical information recording medium comprising a light transmitting substrate, a light absorptive layer containing at least one light absorbing substance formed on the substrate and a light reflective layer made of a metal film formed on the light absorptive layer, wherein an optical parameter represented by p = nabsdabs/.lambda. wherein nabs is the real part of the complex refractive index of the light absorptive layer, dabs is the average thickness of the light absorptive layer and .lambda. is the wavelength of a reading laser beam, is 0.6<p<1.6.

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