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首页> 外文会议>American Society of Mechanical Engineers(ASME) Integrated Nanosystems Conference: Design, Synthesis, and Applications; 20050914-16; Berkeley,CA(US) >THE PATTERNED OPTICAL PHASE CHANGE RECORDING MEDIA
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THE PATTERNED OPTICAL PHASE CHANGE RECORDING MEDIA

机译：图案化的光学相变记录媒体

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摘要

Demands for the high storage capacities and rates of data transfer have been overwhelming in the recent years. With the increasing use of multimedia, the rewritable optical phase-change disks, e.g. CD and DVD, have become more popular. The optical PC data storage devices provide relatively short data access rates (～ 10 MHz) and moderate areal densities. As in other areas of data storage, there has been tremendous demand and pressure, driven by consumer application, for inexpensive high-density PC systems. So far, the optical data storage industry has managed to meet the demands by using lasers with shorter wavelengths and objective lenses with higher numerical aperture (NA). Several strategies such as "multilevel storage layers" and "mark radial width modulation" have been proposed for the next generation of the high-density PC data storage devices. There have been advances in near field optical techniques to increase density (40 Gb/in~2) using solid immersion lens. Hosaka et al. demonstrated 60 nm domains in phase change media that translates to 170 Gb/in2 using a scanning near-filed optical microscope. Kado and Tohda used an atomic force microscope (AFM) to locally modify the electrical property (x 100) of a PC material by applying an electrical pulse between the probe and media. They achieved an areal density near 1 Tbits/cm~2.
机译：近年来，对高存储容量和数据传输速率的需求已势不可挡。随着多媒体的越来越多的使用，可重写的光学相变盘，例如光盘。 CD和DVD变得越来越流行。光学PC数据存储设备提供相对较短的数据访问速率（约10 MHz）和适中的面密度。与其他数据存储领域一样，在消费者应用的推动下，对廉价的高密度PC系统有着巨大的需求和压力。到目前为止，光学数据存储行业已经设法通过使用波长较短的激光器和数值孔径（NA）较高的物镜来满足需求。对于下一代高密度PC数据存储设备，已经提出了几种策略，例如“多层存储层”和“标记径向宽度调制”。近距离光学技术已经有了进步，可以使用固态浸没透镜来提高密度（40 Gb / in〜2）。细坂等。证明了相变介质中的60 nm域，使用扫描近场光学显微镜可转换为170 Gb / in2。 Kado和Tohda使用原子力显微镜（AFM）通过在探针和介质之间施加电脉冲来局部修改PC材料的电特性（x 100）。他们获得了接近1 Tbits / cm〜2的面密度。

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