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Proceedings Paper

Comparison of fast Fourier transform based algorithms for free space propagation
Author(s): Ali-Reza Moradi; Miltcho Danailov; Dan Cojoc
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Paper Abstract

In this paper we compare different free space propagation algorithms based on fast Fourier transform (FFT). They are used to calculate 1D and 2D difiaction patterns in near field and far field as well. Four algorithms are considered: angular spectrum propagation, direct integral formulation, fractional Fourier transform using single FFT (S_FFT) and fractional Fourier transform using two FFT (D_FFT). We compare these algorithms and discuss their advantages and drawbacks for one and two-dimensional objects.

Paper Details

Date Published: 14 December 2005
PDF: 7 pages
Proc. SPIE 5972, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies II, 597218 (14 December 2005); doi: 10.1117/12.639772
Show Author Affiliations
Ali-Reza Moradi, Institute for Advanced Studies in Basic Sciences (Iran)
Elettra Synchrotron (Italy)
Miltcho Danailov, Elettra Synchrotron (Italy)
Dan Cojoc, TASC-INFM Nanolithography Beamline at Elettra Synchrotron (Italy)
Politehnica Univ. of Bucharest (Romania)


Published in SPIE Proceedings Vol. 5972:
Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies II
Ovidiu Iancu; Adrian Manea; Paul Schiopu; Dan Cojoc, Editor(s)

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