Patent ID: 9053714
Filing Date: 2015-06-09
Classification: G11B,Y10T

Abstract:
1. An information recording medium comprising: a substrate; a recording layer which includes an array of recording regions within the recording layer, each of the recording regions having an island shape and including a recording material; and a first resonance enhancing film formed between the substrate and the recording layer, including being formed between the substrate and the recording regions within the recording layer, and between the substrate and portions of the recording layer that are between the recording regions, a second resonance enhancing film formed between the substrate and the first resonance enhancing film and configured to enhance the plasmon resonance; and an intermediate film formed between the first resonance enhancing film and the second resonance enhancing film, wherein the first resonance enhancing film is configured to enhance plasmon resonance and includes a material having a dielectric constant with a real part of which sign is negative, the second resonance enhancing film includes a material having a dielectric constant with a real part of which sign is negative, and the intermediate film includes a material having a dielectric constant with a real part of which sign is positive.