Focusing of different beams by short focus optics

Author

Katrych, N.A.

Author_Institution

Dept. of Transp. Commun., Ukrainian State Acad. of Railway Transp., Kharkov, Ukraine

fYear

2004

fDate

6-9 Sept. 2004

Firstpage

73

Lastpage

75

Abstract

In this paper, numerical methods for fast simulation of nonparaxial beam propagation are discussed. For small distances, in the near field or presence of focusing and other optical elements with high numerical aperture have to be used FFT-algorithms or calculation by rigorous expressions, e.g. eigenfunctions expansions. For long distances more effective is algorithm of correction in the space domain. In all cases of nonparaxial beam propagation when the far field distribution isn´t limited to a half space, only rigorous solutions of the wave equation are valid.

Keywords

eigenvalues and eigenfunctions; fast Fourier transforms; laser beams; light propagation; optical focusing; FFT-algorithms; beam focusing; correction algorithm; eigenfunctions expansions; nonparaxial beam propagation; rigorous expressions calculation; short focus optics; Apertures; Convolution; Fast Fourier transforms; Fourier transforms; Frequency domain analysis; Microelectronics; Optical design; Optical devices; Optical propagation; Rail transportation;

fLanguage

English

Publisher

ieee

Conference_Titel

Laser and Fiber-Optical Networks Modeling, 2004. Proceedings of LFNM 2004. 6th International Conference on

Print_ISBN

0-7803-8429-6

Type

conf

DOI

10.1109/LFNM.2004.1382426

Filename

1382426