DISCRETE-DIPOLE APPROXIMATION FOR SCATTERING BY FEATURES ON SURFACES BY MEANS OF A 2-DIMENSIONAL FAST FOURIER-TRANSFORM TECHNIQUE

Authors
SCHMEHL R NEBEKER BM HIRLEMAN ED
Citation
R. Schmehl et al., DISCRETE-DIPOLE APPROXIMATION FOR SCATTERING BY FEATURES ON SURFACES BY MEANS OF A 2-DIMENSIONAL FAST FOURIER-TRANSFORM TECHNIQUE, Journal of the Optical Society of America. A, Optics, image science,and vision., 14(11), 1997, pp. 3026-3036
Citations number
28
Categorie Soggetti
Optics
Journal title
Journal of the Optical Society of America. A, Optics, image science,and vision. → ACNP
ISSN journal
10847529
Volume
14
Issue
11
Year of publication
1997
Pages
3026 - 3036
Database
ISI
SICI code
1084-7529(1997)14:11<3026:DAFSBF>2.0.ZU;2-9
Abstract
A two-dimensional fast Fourier transform technique is proposed for acc elerating the computation of scattering characteristics of features on surfaces by using the discrete-dipole approximation. The two-dimensio nal fast Fourier transform reduces the CPU execution time dependence o n the number of dipoles N from O(N-2) to O(N log N). The capabilities and flexibility of a discrete-dipole code implementing the technique a re demonstrated with scattering results from circuit features on surfa ces. (C) 1997 Optical Society of America.