Application of the two-dimensional fractional-order Fourier transformation to particle field digital holography.
Application of the two-dimensional fractional-order Fourier transformation to particle field digital holography.
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二维分数阶傅里叶变换在粒子场数字全息术中的应用。
DOI：
10.1364/josaa.19.001537
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发表时间：
2002
影响因子：
1.9
通讯作者：
C. Ozkul
中科院分区：
文献类型：
--
作者：
S. Coëtmellec;D. Lebrun;C. Ozkul
我们证明分数阶傅里叶变换是分析粒子场全息图衍射图案的合适方法。该方法允许重建超出夫琅和费条件的在线数字全息图（d2/lambdaz 大约/= 10）。我们表明，球形颗粒的直径测量精度很高。给出了模拟和实验结果。
We demonstrate that the fractional-order Fourier transformation is a suitable method to analyze the diffraction patterns of particle field holograms. This method permits reconstruction of in-line digital holograms beyond the Fraunhofer condition (d2/lambdaz approximately/= 10). We show that the diameter of spherical particles is measured with good accuracy. Simulation and experimental results are presented.