Phase change optical recording medium

Details Phase change optical recording medium Phase change optical recording medium

1997-07-25

1999-03-30

Dinh, Tan

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

43027013, 428 644, G11B 724

Patent

active

058897569

ABSTRACT:
A phase change optical recording medium having a structure that a phase change optical recording layer and other layers are stacked, wherein the optical recording layer has a microstructure that particles of optical recording material are dispersed in a matrix made from a dielectric, and wherein the optical recording layer meets the condition of Ama<Amc with respect to Maxwell Garnett absorption, where Ama and Amc are the magnitude of Maxwell Garnett absorption of the optical recording layer in the case where the particles are amorphous and crystalline, respectively, so that the optical recording layer meets the condition of Aa*.ltoreq.Ac* with respect to effective absorbance, where Aa* and Ac* are the effective absorbance of the optical recording layer in the case where the particles are amorphous and crystalline, respectively.

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Doremus: "Optical Properties of Thin Metallic Films in Island Form", Journal of Applied Physics, vol. 37, No. 7, Jun. 1966, pp. 2775-2781.

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