Share Email Print
cover

Proceedings Paper

Improved algorithm for diffraction calculation
Author(s): Xiuxin Wang; Chongguang Li; Shengping Yuan
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

An improved algorithm for diffraction calculation is proposed, which is suitable for near-field and far-field diffraction simulation simultaneously. Angular spectrum method (AS) used frequently in diffraction calculation is based on Rayleigh-Sommerfeld integral formula. It is adaptable to a long range of diffracting distance, because there is not approximation with respect to propagation distance in this formula. However, in numerical calculation the sampling problem of transfer function makes it not adapt to near-field and far-field diffraction simulation simultaneously. In this study, this method is improved by limiting the spatial frequency range of diffracting wave. By using the improved method, the problem existed in far-field diffraction simulation with AS is resolved. Simulating examples are presented to validate the proposed method with band-width limit in the paper.

Paper Details

Date Published: 17 November 2010
PDF: 7 pages
Proc. SPIE 7848, Holography, Diffractive Optics, and Applications IV, 784827 (17 November 2010); doi: 10.1117/12.869864
Show Author Affiliations
Xiuxin Wang, Kunming Univ. of Science and Technology (China)
Chongguang Li, Kunming Univ. of Science and Technology (China)
Shengping Yuan, Kunming Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 7848:
Holography, Diffractive Optics, and Applications IV
Yunlong Sheng; Chongxiu Yu; Linsen Chen, Editor(s)

© SPIE. Terms of Use
Back to Top