SERODS: A new medium for high-density optical data storage

被引:0
|
作者
Vo-Dinh, T [1 ]
Stokes, DL [1 ]
机构
[1] Oak Ridge Natl Lab, Div Life Sci, Adv Monitoring Dev Grp, Oak Ridge, TN 37831 USA
来源
OPTICAL DATA STORAGE '98 | 1998年 / 3401卷
关键词
D O I
10.1117/12.327949
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
A new optical data storage technology based on the surface-enhanced Raman scattering (SERS) effect has been developed for high-density optical memory and three-dimensional data storage. With the surface-enhanced Raman optical data storage (SERODS) technology, the molecular interactions between the optical layer molecules and the nanostructured metal substrate are modified by the writing laser, changing their SERS properties to encode information as bits. Since the SERS properties are extremely sensitive to molecular nano-environments, very small "spectrochemical holes" approaching the diffraction limit can be produced for the writing process. The SERODS device uses a reading laser to induce the SERS emission of molecules on the disk and a photometric detector tuned to the frequency of the Raman spectrum to retrieve the stored information. The results illustrate that SERODS is capable of three-dimensional data storage and has the potential to achieve higher storage density than currently available optical data storage systems.
引用
收藏
页码:284 / 290
页数:7
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