Comparison of fast Fourier transform based algorithms for free space propagation

Ali-Reza Moradi; Miltcho Danailov; Dan Cojoc

doi:10.1117/12.639772

14 December 2005 Comparison of fast Fourier transform based algorithms for free space propagation

Ali-Reza Moradi, Miltcho Danailov, Dan Cojoc

Proceedings Volume 5972, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies II; 597218 (2005) https://doi.org/10.1117/12.639772
Event: Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies II, 2004, Bucharest, Romania

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.

Citation Download Citation

Ali-Reza Moradi, Miltcho Danailov, and Dan Cojoc "Comparison of fast Fourier transform based algorithms for free space propagation", Proc. SPIE 5972, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies II, 597218 (14 December 2005); https://doi.org/10.1117/12.639772

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