22 July 2004 Numerical calculation of light propagation in off-axis region
Author Affiliations +
Proceedings Volume 5484, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments II; (2004) https://doi.org/10.1117/12.568905
Event: Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments II, 2003, Wilga, Poland
Abstract
A new numerical algorithm for light propagation simulation has been developed. Algorithm enables simulation of the propagation of the sampled, coherent light field in off-axis case. Method is based on the convolution approach with off-axis kernel. Method provides exact results for distances z >> λ (wavelength) for light field intensity distribution. From the numerical point of view convolution operation is realized by twice utilization of the efficient Fast Fourier Transform (FFT) algorithm. However, it is worth to notice that off-axis kernel disables calculation of the propagation row by row and column by column. So new approach is necessary. In the proposed method of the light propagation simulation numerical effort is significantly decreased in comparison to numerical calculation of the two-dimensional integral. Numerical algorithm is included and described in this paper.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Czeslaw Prokopowicz, Czeslaw Prokopowicz, } "Numerical calculation of light propagation in off-axis region", Proc. SPIE 5484, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments II, (22 July 2004); doi: 10.1117/12.568905; https://doi.org/10.1117/12.568905
PROCEEDINGS
4 PAGES


SHARE
RELATED CONTENT


Back to Top