Storage of 1000 holograms with use of a dual-wavelength method.
Storage of 1000 holograms with use of a dual-wavelength method.
复制标题
使用双波长方法存储 1000 个全息图。
DOI:
10.1364/ao.36.008445
复制
发表时间:
1997
期刊:
影响因子:
1.9
通讯作者:
D. Psaltis
中科院分区:
文献类型:
--
作者:
E. Chuang;D. Psaltis
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.