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首页> 外文期刊>Japanese Journal of Applied Physics. Part 1, Regular Papers, Brief Communications & Review Papers >Optimal Design of Track Pattern for Holographic Read-Only Memory
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Optimal Design of Track Pattern for Holographic Read-Only Memory

机译：全息只读存储器轨迹图案的优化设计

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摘要

An optimal track format for a holographic read-only-memory (ROM) disk is proposed that minimizes the intertrack crosstalk and stores conventional optical disk pit patterns with a density equivalent to that of digital versatile discs (DVDs) in a single holographic layer. To quantify the effect of intertrack crosstalk for the cases of variations in track width and pitch, we defined signal-to-crosstalk ratio (SCR) as a criterion to find the optimal track format. A numerical simulation is used to calculate SCR as a function of track width and pitch. The simulation results show that SCR varies with track width, pitch and pit length. When the track width, pitch, and minimum pit length are 0.5, 0.74, and 0.4 m, respectively, we can set a minimum pit length with a maximum SCR so that the storage density of each layer of the holographic ROM is equivalent to that of DVDs.
机译：提出了一种全息只读存储器（ROM）磁盘的最佳磁道格式，该格式可以最大程度地减少磁道间的串扰，并在单个全息层中存储与数字多功能光盘（DVD）密度相同的常规光盘凹坑图案。为了量化磁道宽度和间距变化情况下磁道间串扰的影响，我们定义了信噪比（SCR）作为寻找最佳磁道格式的标准。数值模拟用于计算SCR，它是轨道宽度和间距的函数。仿真结果表明，SCR随磁道宽度，节距和凹坑长度的变化而变化。当磁道宽度，间距和最小凹坑长度分别为0.5、0.74和0.4 m时，我们可以设置具有最大SCR的最小凹坑长度，以使全息ROM每一层的存储密度等于DVD。

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