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Simultaneous defocusing of the aperture and medium on a spectroholographic storage system

机译:在光全息存储系统上同时散焦孔径和介质

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In a spectroholographic storage system the defocusing method is often used to obtain spectrum uniformityand improve the quality of the recorded information. However, defocusing introduces vignette and stronger interpixel cross talk in the marginal field of view. We report a method that defocuses the aperture and medium together. Based on the pixel spread function, two inequalities are introduced to estimate the upper and lower bounds of the energy received at the CCD. We balance the spectrum uniformity with interpixel cross talk and vignette and then allow the designer to select optimal structure values of the defocusing spectroholographic storage system, i.e., the defocusing value, aperture size, and fill factors for the spatial light modulator and CCD.
机译:在光谱全息存储系统中,通常使用散焦方法来获得光谱均匀性并提高记录信息的质量。但是,散焦会在边缘视野中引入晕影和更强的像素间串扰。我们报告了一种将光圈和介质散焦的方法。基于像素扩散函数,引入了两个不等式来估计在CCD处接收到的能量的上限和下限。我们通过像素间串扰和小插图来平衡频谱均匀性,然后允许设计人员选择散焦光谱全息存储系统的最佳结构值,即散焦值,孔径大小以及空间光调制器和CCD的填充系数。

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