Femtosecond two-photon 2.5D fluorescent optical data storage

被引：0
|
作者：
Koroteev, N.I. [1 ]
Magnitskii, S.A. [1 ]
机构：
[1] M.V. Lomonosov Moscow State Univ, Moscow, Russia
来源：
Molecular Crystals and Liquid Crystals Science and Technology Section B: Nonlinear Optics | 2000年 / 23卷 / 3-4期
关键词：
Laser pulses - Luminescent devices - Optical multilayers - Optical resolving power - Photochromism - Photons - Polymers - Three dimensional;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The prototype of rewritable quasi-three-dimensional (2.5D) optical data storage based on single-beam two-photon point-by-point writing and fluorescent page-by-page reading has been developed. Multilayer polymeric matrices containing several (up to five) 1 μm photochromic informative layers separated by transparent 30 μm inert layers are used as a storage medium. Tightly focused beam of femtosecond pulse trains is shown to be an optimal source for two-photon writing. Spatial resolution of 1.4 μm and equivalent information density of 0.2 Gbit/cm2 have been achieved when naphthacenepirydones are used for sensitizing.
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页码：149 / 156
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