Classical sampling theorem in digital holography

1st International Scientific School on Methods of Digital Image Processing in Optics and Photonics

物理学;计算机科学

Grebenyuk, K.A.^1

Department of Physics, Saratov State University, Astrakhanskaya str. 83, Saratov

410012, Russia^1

关键词: Band-pass sampling;    Digital holograms;    Digital holography;    Low-pass;    Nyquist criteria;    Off-axis;    On-axis;    Sampling theorems;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/536/1/012005/pdf
DOI  :  10.1088/1742-6596/536/1/012005

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

It is proposed to change the present paradigm of the sampling theorem, accepted in papers on digital holography, from 'when recording digital hologram, Nyquist criterion should be fulfilled' to 'when recording on-axis digital hologram, low-pass sampling theorem should be fulfilled, and when recording off-axis one, band-pass sampling theorem should be fulfilled'. Experimental and theoretical basis for this proposal is presented.