摘要:
It is an object of the present invention to provide a phase-change information recording medium, and the like, which is easy to perform initial crystallization, exhibits good recording sensitivity at a linear velocity as high as 10 double speeds or more with as much capacity as DVD-ROM, is capable of overwrite recording and has good storage reliability. For this purpose, the phase-change information recording medium comprises a substrate and at least a first protective layer, a phase-change recording layer, a second protective layer, and a reflective layer disposed on the substrate in one of this sequence and reverse sequence wherein the phase-change recording layer comprises a composition expressed by SnαSbβGaγGeδTeε−Xζ (In this regard, X represents at lease one element selected from Ag, Zn, In and Cu. α, β, γ, δ, ε and ζ represent composition ratio (atomic percent) of each element and are expressed as 5≦α≦25, 40≦β≦91, 2≦γ≦20, 2≦δ≦20, 0≦ε≦10, 0≦ζ≦10 and α+β+γ+δ+ε+ζ=100).
摘要:
To provide a method of recording information to an optical recording medium comprising recording a mark of time length nT (n: natural number of 3 or more, T: clock cycle) in an optical recording medium capable of supporting different recording speeds and having constant information line density, and irradiating the optical recording medium, the optical recording medium irradiated with light of alternating m1 heating pulses of power Pw and m1 cooling pulses of power Pc (where m1 is a natural number smaller than n) provided v
摘要:
The phase-change optical recording medium having a substrate, and at least a first protective layer, a recording layer composed of a phase-change material, a second protective layer and a reflective layer disposed on the substrate in this sequence has a maximum recording linear velocity VH of 20 m/s to 60 m/s, a range of linear velocity recordable even when the recording linear velocity is continuously changed of 0.3VH to 1.0VH, and no occurrence of crystals causing a reproduction error in recorded marks.
摘要翻译:具有基板的至少第一保护层,由相变材料,第二保护层和设置在该基板上的反射层构成的记录层的相变光学记录介质具有最大的记录线性 20m / s至60m / s的速度V H H,即使记录线速度连续地变化到0.3V的时候也能记录的线速度的范围为1.0V 并且不存在引起记录标记中的再现错误的晶体。
摘要:
An optical recording medium including a substrate on which a first protective layer, an interface layer, a phase change recording layer, a second protective layer, an optional third protective layer (anti-sulfuration layer), and a reflective layer are accumulated in this order. The first protective layer contains a mixture of ZnS and SiO2 The interface layer contains a material containing Si and O. The phase change recording layer contains Sn, Sb, Ga, and Ge. In addition, the content of Si and O in the interface layer is 10 to 60% greater than a content of Si and O in the first protective layer.
摘要:
It is an object of the present invention to provide a phase-change information recording medium, and the like, which is easy to perform initial crystallization, exhibits good recording sensitivity at a linear velocity as high as 10 double speeds or more with as much capacity as DVD-ROM, is capable of overwrite recording and has good storage reliability. For this purpose, the phase-change information recording medium comprises a substrate and at least a first protective layer, a phase-change recording layer, a second protective layer, and a reflective layer disposed on the substrate in one of this sequence and reverse sequence wherein the phase-change recording layer comprises a composition expressed by SnαSbβGaγGeδTeεXζ (In this regard, X represents at lease one element selected from Ag, Zn, In and Cu. α, β, γ, δ, ε and ζ represent composition ratio (atomic percent) of each element and are expressed as 5≦α≦25, 40≦β≦91, 2≦γ≦20, 2≦δ≦20, 0≦ε≦10, 0≦ζ≦10 and α+β+γ+δ+ε+ζ=100).
摘要:
An optical recording method to record information with a mark length recording method, where an amorphous mark and a crystal space are recorded only in the groove of a substrate having a guide groove, with the temporal length of the mark and the space of nT (T denotes a reference clock period; n denotes a natural number). The space is formed at least by an erase pulse of power Pe; all the marks of 4T or longer are formed by a multi pulse alternatively irradiating a heating pulse of power Pw and a cooling pulse of power Pb while Pw>Pb; and the Pe and the Pw satisfy the following relations: 0.15≦Pe/Pw≦0.4, and 0.4≦τw/(τw+τb)≦0.8, where τw denotes the sum of the length of the heating pulses, and τb denotes the sum of the length of the cooling pulses.
摘要:
To provide an optical recording medium in which error-causing short marks are produced in numbers small enough excellent high-recording characteristics and in which amorphous marks are uniform in shape. The optical recording medium includes: a first protective layer; a recording layer containing Sb as a main ingredient; a second protective layer; and a reflective layer, the first protective layer, the recording layer, the second protective layer and the reflective layer being provided in the order in which light passes through the medium for recording and reproduction of information, wherein the first protective layer and/or the second protective layer, both of which are in contact with the recording layer, are/is formed of a crystalline oxide.
摘要:
An optical recording medium having first protective layer, recording layer, second protective layer, and reflective layer, wherein the recording layer contains a phase-change material represented by Formula (1″1), Formula (1-2), or Formula (1-3); the second protective layer contains one selected from zinc oxides, indium oxides, tin oxides, mixtures thereof, and materials Formula (2), and materials Formula (3). Formula (1″1): InαiSbβiX1γi(X1: Ge, Te, Zn, Mn, or mixture thereof, 0.10≦β1≦0.25, 0.65≦β1≦0.80, and 0.04≦γ1≦0.15) Formula (1-2): Gaα2Sbβ2SnY2Ges2X2∈2 (X2: Te, Zn, Mn, In, or mixture thereof, 0.04≦α2≦0.09, 0.56≦62≦0.79, 0.05≦γ2
摘要:
An optical recording medium having first protective layer, recording layer, second protective layer, and reflective layer, wherein the recording layer contains a phase-change material represented by Formula (1″1), Formula (1-2), or Formula (1-3); the second protective layer contains one selected from zinc oxides, indium oxides, tin oxides, mixtures thereof, and materials Formula (2), and materials Formula (3). Formula (1″1): InαiSbβiX1γi(X1: Ge, Te, Zn, Mn, or mixture thereof, 0.10≦α1≦0.25, 0.65≦β1≦0.80, and 0.04≦γ1≦0.15) Formula (1-2): Gaα2Sbβ2SnY2Ges2X2∈2 (X2: Te, Zn, Mn, In, or mixture thereof, 0.04≦α2≦0.09, 0.56≦62≦0.79, 0.05≦γ2
摘要:
To provide an optical recording medium in which error-causing short marks are produced in numbers small enough excellent high-recording characteristics and in which amorphous marks are uniform in shape. The optical recording medium includes: a first protective layer; a recording layer containing Sb as a main ingredient; a second protective layer; and a reflective layer, the first protective layer, the recording layer, the second protective layer and the reflective layer being provided in the order in which light passes through the medium for recording and reproduction of information, wherein the first protective layer and/or the second protective layer, both of which are in contact with the recording layer, are/is formed of a crystalline oxide.