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22 May 1998 Fresnel diffraction calculation through the fast fractional Fourier transform
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Proceedings Volume 3490, Optics in Computing '98; (1998)
Event: Optics in Computing '98, 1998, Bruges, Belgium
A new method for the calculation of the Fresnel diffraction patterns through a fast fractional Fourier transform (FRT) is presented. The FRT can be efficiently calculated for any order by using the fast-Fourier transform algorithm. The resemblances between the FRT and the Fresnel integrals allow the use of that algorithm to calculate efficiently the Fresnel integral of any object, with independence of its shape.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David Mas, Carlos Ferreira, and Javier Garcia "Fresnel diffraction calculation through the fast fractional Fourier transform", Proc. SPIE 3490, Optics in Computing '98, (22 May 1998);


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