Loka A, Kurahashi K
Appl Opt. 1976 Jul 1;15(7):1787-94. doi: 10.1364/AO.15.001787.
An incoherent image synthesis method using a recently developed grating modulated phase plate has been presented in order to reduce unwanted noise components in the reconstructed images. A study in connection with this method leads us to the analytical derivation of a desirable phase plate with a specified phase sequence. The analytical description presented here, with particular emphasis on obtaining the imaging property in coherent holographic imagery identical to that in incoherent imagery, shows that the derived phase plate enables us to get the reconstructions with far less undesirable irregular intensity fluctuations or noiselike pattern. Some experimental confirmations are given to make sure of the analysis.
为了减少重建图像中不需要的噪声成分,提出了一种使用最近开发的光栅调制相位板的非相干图像合成方法。与该方法相关的一项研究使我们能够对具有特定相位序列的理想相位板进行解析推导。这里给出的解析描述特别强调在相干全息成像中获得与非相干成像相同的成像特性,结果表明,所推导的相位板能够使我们得到具有远较少不希望出现的不规则强度波动或类似噪声图案的重建图像。给出了一些实验验证以证实该分析。