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Algorithms of calculation of light propagation in the free space without using FFT algorithm

A.A. Almazov1
1Samara State Aerospace University 

 PDF, 9 kB

Pages: 116-118.

This article discusses some aspects of the practical implementation of algorithms for the numerical calculation of Fresnel and Kirchhoff transforms, as well as modeling the propagation of a light field in free space. Accurate simulation is performed without using the Fast Fourier Transform (FFT). An efficient algorithm for solving this problem is proposed.

Fresnel transform, Kirchhoff transform, approximation by spherical waves, light field, algorithm, numerical computation, Fast Fourier transform.

Almazov AA. Algorithms of calculation of light propagation in the free-space without using FFT algorithm. Computer Optics 2004; 26: 116-118.


  1. Soifer VA, ed. Methods for computer design of diffractive optical elements. New York: John Willey & Sons Inc; 2002. 
  2. Drozdov MA, Khonina SN. Investigation of the limits of applicability of the paraxial approximation for describing the propagation of laser light in free space [In Russian]. Natural Science, Economics, Management 2003; 4: 47-55.

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