**(26)** * << * >> * Russian * English * Content * All Issues

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

# A.A. Almazov^{1}

^{1}Samara State Aerospace University

PDF, 9 kB

**Pages: **116-118.

**Abstract:**

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.

**Keywords**:

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

**Citation**:

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

**
**References:

- Soifer VA, ed. Methods for computer design of diffractive optical elements. New York: John Willey & Sons Inc; 2002.
- 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.

**© 2009, IPSI RAS**

151, Molodogvardeiskaya str., Samara, 443001, Russia; E-mail: ko@smr.ru ; Tel: +7 (846) 242-41-24 (Executive secretary), +7 (846) 332-56-22 (Issuing editor), Fax: +7 (846) 332-56-20