Efficient beam-propagation method based on Pad? approximants in the propagation direction
Journal
Optics Letters
Journal Volume
22
Journal Issue
13
Pages
949-951
Date Issued
1997
Author(s)
Chang, H.-C.
Abstract
We propose a novel beam-propagation method (BPM) based on the higher-order Padé approximants in both the transverse and the longitudinal directions. Extending the Padé approximation to the propagation direction and adopting the multistep method increase the programming effort by only a small amount. Compared with the conventional BPM's, this method is more accurate and efficient. The accuracy and the propagation step size are well predicted by a phase analysis. © 1997 Optical Society of America.
Type
journal article