KR880008262A - Optical recording media - Google Patents

Abstract

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Description

Optical recording media

Since this is an open matter, no full text was included.

1 to 3 partially show another optical record carrier according to the present invention.

Claims (30)

An optical recording medium comprising a substrate and a recording layer formed on the substrate, wherein M is at least one of an MSb alloy of Cu, Ag, Ge, Bi, Zn, Cd, Sn, Pb, and As. The optical recording medium according to claim 1, wherein the Sb component in the MSb alloy is in the range of approximately 25 to 75 atomic percent. The optical recording medium according to claim 1, wherein a state transition occurs between an equilibrium structure and an unbalanced structure when the recording layer is exposed to light. The optical recording medium according to claim 1, wherein the optical thickness of the recording layer is thinner than 1/2 of the light wavelength. The optical recording medium according to claim 1, wherein the optical recording medium includes a surface formed on the recording layer. The optical recording medium according to claim 5, wherein the optical recording medium includes a first protective layer formed between the substrate and the recording layer and a second protective layer formed between the recording layer and the surface layer. An optical recording medium comprising a substrate, and a recording layer, wherein M is at least one of Cu, Ag, Ge, Bi, Zn, Cd, Sn, Pb, and As and an MSb alloy and chemically stable insulating material. 8. The optical recording medium according to claim 7, wherein the Sb component of the MSb alloy is in the range of about 25 to 75 atomic%. 8. The optical recording medium according to claim 7, wherein a state transition occurs between an equilibrium structure and a non-equilibrium structure when the recording layer is exposed to light. 8. The optical recording medium according to claim 7, wherein the optical thickness of the recording layer is thinner than 1/2 of the wavelength of light supplied. 8. The optical recording medium according to claim 7, wherein the optical recording medium comprises a surface layer formed on the recording layer. 8. The optical recording medium according to claim 7, wherein said insulating material contains oxygen. 8. The optical recording medium according to claim 7, wherein said insulating material contains fluorine. 8. The optical recording medium according to claim 7, wherein said insulating material contains sulfur. 8. The optical recording medium according to claim 7, wherein the refractive index of the MSb alloy is in the range of about 40 to 90%. An optical recording medium comprising a substrate and a recording layer formed on the substrate, wherein M is made of an MSb alloy of at least Cu and Ag, Ge, Bi, Zn, Cd, Sn, Pb, and As. 17. The optical recording medium of claim 16, wherein the Sb component in the MSb alloy is in the range of approximately 25 to 75 atomic percent. 17. The optical recording medium of claim 16, wherein a transition occurs between a structure in equilibrium and a structure in equilibrium when the recording layer is exposed to light. The optical recording medium according to claim 16, wherein the optical thickness of the recording layer is thinner than 1/2 of the light wavelength. 17. The optical recording medium of claim 16, wherein the optical recording medium includes a surface layer formed on the recording layer. 21. The optical recording medium as claimed in claim 20, wherein the optical recording medium includes a first protective layer formed between the substrate and the recording layer and a second protective layer formed between the recording layer and the surface layer. An optical recording medium comprising a substrate, and a recording layer comprising an MSb alloy wherein M is at least one of Cu, Ge, Bi, Zn, Cd, Sn, Pb, and As and a chemically stable insulating material. 23. The optical recording medium of claim 22, wherein the Sb component of the MSb alloy is in the range of approximately 25 to 75 atomic percent. 23. The optical recording medium as claimed in claim 22, wherein a state transition occurs between an equilibrium structure and a non-equilibrium structure when the recording layer is exposed to light. 23. The optical recording medium according to claim 22, wherein the optical thickness of the recording layer is thinner than 1/2 of the light wavelength supplied. 23. The optical recording medium of claim 22, wherein the optical recording medium includes a surface layer formed on the recording layer. 23. The optical recording medium according to claim 22, wherein said insulating material contains oxygen. 23. The optical recording medium according to claim 22, wherein the insulating material contains fluorine. 23. The optical recording medium according to claim 22, wherein said insulating material contains sulfur. 23. The optical recording medium of claim 22, wherein the MSb alloy has a refractive index in the range of about 40 to 90%. ※ Note: The disclosure is based on the initial application.