SGER: Thermal Fixing Method for Volume Storage

SGER：卷存储的热固定方法

• 批准号: 9618891
• 负责人: Michael Fiddy
• 金额: $ 1万
• 依托单位: University of Massachusetts Lowell
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-10-01 至 1997-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9618891&HistoricalAwards=false
• 关键词: SGER; Thermal; Fixing; Method; Volume

9618891 Fiddy Optical storage in photorefractives is now the focus of a large national effort, through PRISM (Photorefractive Information Storage Materials consortium). One of the major problems in using volume storage media that they face is that of selective fixing and erasing. The PI's are of the opinion that a straightforward method to achieve these requirements is possible using the much more readily available material of lithium niobate. They propose to show that one can optically address doped lithium niobate in such a way that one can locally heat a small volume interior to the crystal, while writing simultaneously the information to be stored. Such an approach assumes local storage of information holographically, thereby minimizing the cross-talk between the set of "pages" written in one volume as they are written and read through adjacent volumes. A laser induced heating effect allows for non-mechanical beam steering, which is another desirable attribute of volume storage media. In order to demonstrate the principle of this idea, we would first use an inexpensive and not particularly compact carbon dioxide laser to perform the localized heating. ***

9618891光折变中的保真光存储现在是通过光折变信息存储材料联盟(PRISM)进行的一项大型国家努力的重点。他们在使用卷存储介质时面临的主要问题之一是选择性固定和擦除。PI们认为，使用更容易获得的材料Nb酸锂，可以采用一种直接的方法来实现这些要求。他们提出，人们可以通过光学方式对掺杂的铌酸锂进行寻址，这样就可以在写入要存储的信息的同时，对晶体内部的小体积进行局部加热。这样的方法假定信息全息地本地存储，从而在通过相邻卷写入和读取它们时最小化在一个卷中写入的该组“页”之间的串扰。激光诱导的加热效应允许非机械的光束操纵，这是体积存储介质的另一个所需属性。为了演示这一想法的原理，我们将首先使用一台价格低廉且不是特别紧凑的二氧化碳激光器来进行局部加热。***