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Scaled angular spectrum method
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DOI：10.1364/OL.37.004128.png)
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Abstract
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The angular spectrum method (ASM) calculates diffraction calculation in a high numerical aperture, unlike Fresnel diffraction. However, this method does not allow us to calculate at different sampling rates on source and destination planes. In this Letter, we propose a scaled ASM that calculates diffraction at different sampling rates on source and destination planes using the nonuniform fast Fourier transform. (C) 2012 Optical Society of America
Keywords:
FAST FOURIER-TRANSFORMS
RECONSTRUCTION
ALGORITHM
HOLOGRAMS
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