A method of optical recording
    5.
    发明公开
    A method of optical recording 失效
    Optisches Aufzeichnungsverfahren。

    公开(公告)号:EP0212336A1

    公开(公告)日:1987-03-04

    申请号:EP86110279.6

    申请日:1986-07-25

    IPC分类号: G11B7/24

    摘要: A method of optical recording uses a film of a material which has a crystallisation temperature between 100°C and 400°C and can be switched between the amorphous and the crystalline states. Both the amorphous and crystalline states are substantially a single phase where the stoichiometric ratio of the material remains unchanged. A spot on the film is heated with a laser beam with a controlled pulse duration and intensity to melt the material in the spot. When the laser irradiation is stopped, the material in that spot is quenched at a rate that produces the desired state, that is, either to the crystalline or the amorphous state.

    摘要翻译: 光学记录方法使用具有100℃至400℃之间的结晶温度并可在无定形状态和结晶状态之间切换的材料的膜。 无定形和晶态均基本上是单相,其中材料的化学计量比保持不变。 用激光束加热膜上的斑点,其脉冲持续时间和强度受到控制,以熔化现场的材料。 当激光照射停止时,该点中的材料以产生所需状态的速率淬火,即结晶或非晶状态。

    System and method for optical phase change recording
    6.
    发明公开
    System and method for optical phase change recording 失效
    系统和Verfahren zur optischen Aufzeichnung mitPhasenänderung。

    公开(公告)号:EP0466670A2

    公开(公告)日:1992-01-15

    申请号:EP91850171.9

    申请日:1991-06-20

    IPC分类号: G11B7/00 G11B7/24

    摘要: An optical phase change medium (100) comprises a substrate (102), an active layer (104) having a crystalline and a liquid state, a dielectric layer (106) and a reflective layer (108). The active layer is of a thickness which will transmit incident light. The dielectric layer is of a thickness such that light passing through the active layer is reflected by the reflective layer and destructively interferes with the incident light reflected directly off of the active layer, thereby causing the crystalline state of the active layer to absorb more light than the liquid state. The result is that the medium experiences reduced temperature during writing.

    摘要翻译: 光学相变介质包括基底,具有结晶和液态的有源层,电介质层和反射层。 有源层具有透射入射光的厚度。 电介质层的厚度使得穿过有源层的光被反射层反射,并且与直接从有源层反射的入射光相互破坏地干扰,从而使活性层的结晶状态吸收比 液态。 结果是,介质在写入过程中会降低温度。