Storage of 1000 holograms with use of a dual-wavelength method.

Storage of 1000 holograms with use of a dual-wavelength method.
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使用双波长方法存储 1000 个全息图。

DOI:
10.1364/ao.36.008445
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发表时间:
1997
期刊:
影响因子:
1.9
通讯作者:
D. Psaltis
D. Psaltis
中科院分区:
工程技术4区
文献类型:
--
作者:
E. Chuang;D. Psaltis

文献摘要

被引文献

相似文献

我们演示了在存储体系结构中存储1000个全息图,该存储体系结构使用不同的波长来记录和读出,以减少在检索数据时的光栅衰减。通过在像平面中记录和使用薄晶体,可以最大限度地减少由于使用两个波长而引起的布拉格失配问题。周转多路复用可以与角度多路复用相结合,以克服薄晶体的角度选择性较差的问题。暗电导率降低了非易失性读出的双波长方法的有效性,并且对可用像素大小的限制将该方法限制为适度的存储密度。
We demonstrate the storage of 1000 holograms in a memory architecture that makes use of different wavelengths for recording and readout to reduce the grating decay while retrieving data. Bragg-mismatch problems from the use of two wavelengths are minimized through recording in the image plane and using thin crystals. Peristrophic multiplexing can be combined with angle multiplexing to counter the poorer angular selectivity of thin crystals. Dark conductivity reduces the effectiveness of the dual-wavelength method for nonvolatile readout, and constraints on the usable pixel sizes limit this method to moderate storage densities.