• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Optical modelling and design >Recording/Reproduction Simulation of Holographic Memory Using Three-Dimensional Beam Propagation Method
【24h】

Recording/Reproduction Simulation of Holographic Memory Using Three-Dimensional Beam Propagation Method

机译：三维光束传播方法对全息存储器的记录/复制模拟

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The rapid progress in computer performance and widespread use of broadband networks has facilitated the transmission of huge quantities of digital information, thus increasing the need for high-speed, large-capacity storage devices and leading to studies on holographic data storage (HDS). Compared with laser disks where the recording density is limited by optical diffraction, HDS provides ultrahigh capacity with multiplex recording and high-speed transfer greater than 1 Gbps; it has excellent potential for optical memory systems of the future [1].rnTo develop HDS, a design theory for element technologies such as signal processing, recording materials and optical systems is required. Therefore, this study examines technology for simulating the recording and reproduction for HDS. In simulations thus far, the medium for the recording process has usually been approximated as laminated layers of holographic thin films. This method is suitable for systematic evaluation because the computational cost is low and it allows simulation in the true form of data, that is, in two-dimensional digital data patterns. However, it is difficult to accurately examine the influence of film thickness with a two-dimensional lamination simulation. Therefore, in this study, a technique for analyzing thick-film holograms is examined using the beam propagation method. The results of a two-dimensional simulation assuming laminated, holographic thin films and a three-dimensional simulation using the beam propagation method are compared for cases where the medium need not be treated as a thick film.
机译：计算机性能的飞速进步和宽带网络的广泛使用促进了大量数字信息的传输，从而增加了对高速，大容量存储设备的需求，并导致对全息数据存储（HDS）的研究。与通过光学衍射限制记录密度的激光盘相比，HDS具有超大容量，多重记录和大于1 Gbps的高速传输；它对于未来的光学存储系统具有极好的潜力[1]。为了开发HDS，需要一种用于信号处理，记录材料和光学系统等元件技术的设计理论。因此，本研究探讨了用于模拟HDS记录和再现的技术。到目前为止，在模拟中，用于记录过程的介质通常被近似为全息薄膜的层压层。该方法适用于系统评估，因为其计算成本低，并且允许以数据的真实形式（即二维数字数据模式）进行仿真。但是，通过二维层压模拟难以准确地检查膜厚度的影响。因此，在这项研究中，使用光束传播方法研究了分析厚膜全息图的技术。对于不需要将介质视为厚膜的情况，比较了假设叠层全息薄膜的二维模拟结果和使用束传播方法进行的三维模拟结果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号