Different numerical wavefront propagations in Fresnel approximation are proposed in digital holography. Standard convolution formalism fails for small reconstruction distances. We developed a simplified convolution formalism that is equivalent to the angular spectrum.
© 2008 Optical Society of America
T. Colomb, F. Montfort, and C. Depeursinge, "Small Reconstruction Distance in Convolution Formalism," in Digital Holography and Three-Dimensional Imaging, OSA Technical Digest (CD) (Optical Society of America, 2008), paper DMA4.
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