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Optical computing by a vector holographic memory system

机译:矢量全息存储系统的光学计算

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We propose what is to our knowledge a novel holographic memory system that is simultaneously applicable to data storage and optical computing. We introduce a polarization-modulated reference beam into holographic recording. A desired spatial-frequency component of an object beam is recorded as a polarization-modulated grating, and the other component is recorded as an intensity-modulated grating. Since the polarization-modulated grating rotates the polarization axis of the incident light by 90°, it is possible to distinguish the desired spatial-frequency component of the retrieved image. Utilizing this property, we have successfully performed spatial-frequency filtering and frequency-selective matched filtering. The system is capable of a variety of optical computations, depending on the design of the polarization modulation.
机译:我们提出我们所知的新颖的全息存储系统,该系统同时适用于数据存储和光学计算。我们将偏振调制参考光束引入全息记录。物体光束的期望空间频率分量被记录为偏振调制光栅,而另一分量被记录为强度调制光栅。由于偏振调制光栅使入射光的偏振轴旋转90°,因此可以区分所检索图像的所需空间频率分量。利用此属性,我们已成功执行了空间频率滤波和频率选择匹配滤波。该系统能够进行多种光学计算,具体取决于偏振调制的设计。

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